
The identification of the causes of World War I remains a debated issue.
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
began in the
Balkans
The Balkans ( , ), corresponding partially with the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throug ...
on July 28, 1914, and hostilities
ended on November 11, 1918, leaving
17 million dead and 25 million wounded. Moreover, the
Russian Civil War
The Russian Civil War () was a multi-party civil war in the former Russian Empire sparked by the 1917 overthrowing of the Russian Provisional Government in the October Revolution, as many factions vied to determine Russia's political future. I ...
can in many ways be considered a continuation of World War I, as can various other conflicts in the direct aftermath of 1918.
Scholars looking at the long term seek to explain why two rival sets of powers (the German Empire, Austria-Hungary, and the Ottoman Empire against the Russian Empire, France, and the British Empire) came into conflict by the start of 1914. They look at such factors as political, territorial and economic competition;
militarism
Militarism is the belief or the desire of a government or a people that a state should maintain a strong military capability and to use it aggressively to expand national interests and/or values. It may also imply the glorification of the mili ...
, a complex web of alliances and alignments;
imperialism
Imperialism is the maintaining and extending of Power (international relations), power over foreign nations, particularly through expansionism, employing both hard power (military and economic power) and soft power (diplomatic power and cultura ...
, the growth of
nationalism
Nationalism is an idea or movement that holds that the nation should be congruent with the state. As a movement, it presupposes the existence and tends to promote the interests of a particular nation, Smith, Anthony. ''Nationalism: Theory, I ...
; and the power vacuum created by the
decline of the Ottoman Empire
In the 18th century, the Ottoman Empire faced threats on numerous frontiers from multiple industrialised European powers as well as internal instabilities. Outsider influence, rise of nationalism and internal corruption demanded the Empire to lo ...
. Other important long-term or structural factors that are often studied include unresolved
territorial dispute
A territorial dispute or boundary dispute is a disagreement over the possession (law), possession or control of territories (land, maritime territory, water or airspace) between two or more political entities.
Context and definitions
Territorial ...
s, the perceived breakdown of the European
balance of power,
convoluted and fragmented
governance
Governance is the overall complex system or framework of Process, processes, functions, structures, Social norm, rules, Law, laws and Norms (sociology), norms born out of the Interpersonal relationship, relationships, Social interaction, intera ...
,
arms race
An arms race occurs when two or more groups compete in military superiority. It consists of a competition between two or more State (polity), states to have superior armed forces, concerning production of weapons, the growth of a military, and ...
s and
security dilemma
In international relations, the security dilemma (also referred to as the spiral model) is when the increase in one state's security (such as increasing its military strength) leads other states to fear for their own security (because they do not k ...
s,
a
cult of the offensive,
and
military planning
A military operation plan (commonly called a war plan before World War II) is a formal plan for military armed forces, their military organizations and units to conduct operations, as drawn up by commanders within the combat operations process ...
.
Scholars seeking short-term analysis focus on the summer of 1914 and ask whether the conflict could have been stopped, or instead whether deeper causes made it inevitable. Among the immediate causes were the decisions made by statesmen and generals during the
July Crisis
The July Crisis was a series of interrelated diplomatic and military escalations among the Great power, major powers of Europe in mid-1914, Causes of World War I, which led to the outbreak of World War I. It began on 28 June 1914 when the Serbs ...
, which was triggered by the
assassination of Archduke Franz Ferdinand of Austria by the
Bosnian Serb
The Serbs of Bosnia and Herzegovina ( sr-Cyrl, Срби Босне и Херцеговине, Srbi Bosne i Hercegovine), often referred to as Bosnian Serbs ( sr-cyrl, босански Срби, bosanski Srbi) or Herzegovinian Serbs ( sr-cyrl, � ...
nationalist
Gavrilo Princip
Gavrilo Princip ( sr-Cyrl, Гаврило Принцип, ; 25 July 189428 April 1918) was a Bosnian Serb student who assassinated Archduke Franz Ferdinand, heir presumptive to the throne of Austria-Hungary, and his wife Sophie, Duchess von ...
, who had been supported by a nationalist organization in
Serbia
, image_flag = Flag of Serbia.svg
, national_motto =
, image_coat = Coat of arms of Serbia.svg
, national_anthem = ()
, image_map =
, map_caption = Location of Serbia (gree ...
.
The crisis escalated as the conflict between Austria-Hungary and Serbia was joined by their allies Russia, Germany, France, and ultimately
Belgium
Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
and the United Kingdom. Other factors that came into play during the diplomatic crisis leading up to the war included misperceptions of intent (such as the German belief that Britain would remain neutral), the fatalistic belief that war was inevitable, and the speed with which the crisis escalated, partly due to delays and misunderstandings in diplomatic communications.
The crisis followed a series of diplomatic clashes among the
Great Powers
A great power is a sovereign state that is recognized as having the ability and expertise to exert its influence on a global scale. Great powers characteristically possess military and economic strength, as well as diplomatic and soft power ...
(
Italy
Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
,
France
France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
,
Germany
Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
,
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
,
Austria-Hungary
Austria-Hungary, also referred to as the Austro-Hungarian Empire, the Dual Monarchy or the Habsburg Monarchy, was a multi-national constitutional monarchy in Central Europe#Before World War I, Central Europe between 1867 and 1918. A military ...
and
Russia
Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
) over European and
colonial issues in the decades before 1914 that had left tensions high. The cause of these public clashes can be traced to changes in the balance of power in Europe that had been taking place since 1867.
Consensus on the origins of the war
remains elusive, since historians disagree on key factors and place differing emphasis on a variety of factors. That is compounded by
historical arguments changing over time, particularly as classified historical archives become available, and as perspectives and ideologies of historians have changed. The deepest division among historians is between those who see Germany and Austria-Hungary as having driven events and those who focus on power dynamics among a wider set of actors and circumstances. Secondary fault lines exist between those who believe that Germany deliberately planned a European war, those who believe that the war was largely unplanned but was still caused principally by Germany and Austria-Hungary taking risks, and those who believe that some or all of the other powers (Russia, France, Serbia, United Kingdom) played a more significant role in causing the war than has been traditionally suggested.
Immediate causes
Assassination of Archduke Franz Ferdinand by Serbian nationalists, 28 June 1914
On 28 June 1914,
Archduke Franz Ferdinand, the heir presumptive to the Austro-Hungarian throne, and his wife,
Sophie, Duchess of Hohenberg, were shot dead after a wrong turn by two gun shots in Sarajevo by
Gavrilo Princip
Gavrilo Princip ( sr-Cyrl, Гаврило Принцип, ; 25 July 189428 April 1918) was a Bosnian Serb student who assassinated Archduke Franz Ferdinand, heir presumptive to the throne of Austria-Hungary, and his wife Sophie, Duchess von ...
, one of a group of six assassins (five Serbs and one Bosniak) co-ordinated by
Danilo Ilić, a
Bosnian Serb
The Serbs of Bosnia and Herzegovina ( sr-Cyrl, Срби Босне и Херцеговине, Srbi Bosne i Hercegovine), often referred to as Bosnian Serbs ( sr-cyrl, босански Срби, bosanski Srbi) or Herzegovinian Serbs ( sr-cyrl, � ...
and a member of the
Black Hand secret society.
The assassination was significant because it was perceived by Austria-Hungary as an existential challenge and so was viewed as providing a ''
casus belli
A (; ) is an act or an event that either provokes or is used to justify a war. A ''casus belli'' involves direct offenses or threats against the nation declaring the war, whereas a ' involves offenses or threats against its ally—usually one bou ...
'' with Serbia.
Emperor Franz Josef was eighty-four and so the assassination of his heir, so soon before he was likely to hand over the crown, was seen as a direct challenge to the empire. Many ministers in Austria, especially Berchtold, argued that the act must be avenged.
July Crisis
Polarization of Europe, 1887–1914
In August 1914, ''
The Independent
''The Independent'' is a British online newspaper. It was established in 1986 as a national morning printed paper. Nicknamed the ''Indy'', it began as a broadsheet and changed to tabloid format in 2003. The last printed edition was publis ...
'' magazine described the assassination of Franz Ferdinand and his wife in June as a "deplorable but relatively insignificant" reason for which
"It may be doubted whether the Archduke
sworth all this carnage", the magazine added. It discussed and dismissed ethnicity, race, religion, and national interests as motivations for war. ''The Independent'' concluded that "such is the ridiculous and tragical situation resulting from the survival of the antiquated superstition of the '
balance of power,' that is, the theory that the prosperity of one nation was an injury to others":
"The only unexpected thing about the present European war is the date of it", the magazine added later that month:
To understand the long-term origins of the war in 1914, it is essential to understand how the powers formed into two competing sets that shared common aims and enemies. Both sets became, by August 1914, Germany and Austria-Hungary on one side and Russia, France, and Britain on the other side.
German realignment to Austria-Hungary and Russian realignment to France, 1887–1892
In 1887, German and Russian alignment was secured by means of a secret
Reinsurance Treaty
The Reinsurance Treaty was a diplomatic agreement between the German Empire and the Russian Empire that was in effect from 1887 to 1890. The existence of the agreement was not known to the general public, and as such, was only known to a handful ...
arranged by
Otto von Bismarck
Otto, Prince of Bismarck, Count of Bismarck-Schönhausen, Duke of Lauenburg (; born ''Otto Eduard Leopold von Bismarck''; 1 April 1815 – 30 July 1898) was a German statesman and diplomat who oversaw the unification of Germany and served as ...
. However, in 1890, Bismarck fell from power, and the treaty was allowed to lapse in favor of the
Dual Alliance (1879)
The Dual Alliance (, ) was a Military alliance, defensive alliance between German Empire, Germany and Austria-Hungary, which was created by treaty on October 7, 1879, as part of Germany's Otto von Bismarck, Otto von Bismarck's system of alliances ...
between Germany and Austria-Hungary. That development was attributed to Count
Leo von Caprivi
Georg Leo Graf von Caprivi de Caprara de Montecuccoli (English language, English: ''Count George Leo of Caprivi, Caprara, and Montecuccoli''; born Georg Leo von Caprivi; 24 February 1831 – 6 February 1899) was a German general and statesman. He ...
, the Prussian general who replaced Bismarck as chancellor. It is claimed that Caprivi recognized a personal inability to manage the European system as his predecessor had and so was counseled by contemporary figures such as
Friedrich von Holstein to follow a more logical approach, as opposed to Bismarck's complex and even duplicitous strategy.
Thus, the treaty with Austria-Hungary was concluded despite the Russian willingness to amend the Reinsurance Treaty and to sacrifice a provision referred to as the "very secret additions"
that concerned the
Turkish Straits
The Turkish Straits () are two internationally significant waterways in northwestern Turkey. The Straits create a series of international passages that connect the Aegean and Mediterranean seas to the Black Sea. They consist of the Dardanelles ...
.
Caprivi's decision was also driven by the belief that the Reinsurance Treaty was no longer needed to ensure Russian neutrality if France attacked Germany, and the treaty would even preclude an offensive against France.
Lacking the capacity for Bismarck's strategic ambiguity, Caprivi pursued a policy that was oriented towards "getting Russia to accept Berlin's promises on good faith and to encourage
St. Petersburg
Saint Petersburg, formerly known as Petrograd and later Leningrad, is the second-largest city in Russia after Moscow. It is situated on the River Neva, at the head of the Gulf of Finland on the Baltic Sea. The city had a population of 5,601, ...
to engage in a direct understanding with Vienna, without a written accord."
By 1882, the Dual Alliance was expanded to include Italy. In response, Russia secured in the same year the
Franco-Russian Alliance
The Franco-Russian Alliance (, ), also known as the Dual Entente or Russo-French Rapprochement (''Rapprochement Franco-Russe'', Русско-Французское Сближение; ''Russko-Frantsuzskoye Sblizheniye''), was an alliance formed ...
, a strong military relationship that was to last until 1917. That move was prompted by Russia's need for an ally since it was experiencing a major famine and a rise in antigovernment revolutionary activities.
The alliance was gradually built throughout the years from when Bismarck refused the sale of Russian bonds in
Berlin
Berlin ( ; ) is the Capital of Germany, capital and largest city of Germany, by both area and List of cities in Germany by population, population. With 3.7 million inhabitants, it has the List of cities in the European Union by population withi ...
, which drove Russia to the
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
capital market. That began the expansion of Russian and French financial ties, which eventually helped elevate the Franco-Russian entente to the diplomatic and military arenas.
Caprivi's strategy appeared to work when, during the outbreak of the
Bosnian crisis
The Bosnian Crisis, also known as the Annexation Crisis (, ; sh-Latn-Cyrl, Aneksiona kriza, Анексиона криза) or the First Balkan Crisis, erupted on 5 October 1908 when Austria-Hungary announced the annexation of Bosnia and Herzeg ...
of 1908, Germany successfully demanded that Russia step back and demobilize. When Germany asked Russia the same thing later, Russia refused, which finally helped precipitate the war.
French distrust of Germany

Some of the distant origins of World War I can be seen in the results and consequences of the
Franco-Prussian War
The Franco-Prussian War or Franco-German War, often referred to in France as the War of 1870, was a conflict between the Second French Empire and the North German Confederation led by the Kingdom of Prussia. Lasting from 19 July 1870 to 28 Janua ...
in 1870 and 1871 and the concurrent
unification of Germany
The unification of Germany (, ) was a process of building the first nation-state for Germans with federalism, federal features based on the concept of Lesser Germany (one without Habsburgs' multi-ethnic Austria or its German-speaking part). I ...
. Germany had won decisively and established a powerful empire, but France fell into chaos and experienced a years-long decline in its military power. A legacy of animosity grew between France and Germany after the German annexation of
Alsace-Lorraine. The annexation caused widespread resentment in France, giving rise to the desire for revenge that was known as
revanchism
Revanchism (, from ''revanche'', "revenge") is the political manifestation of the will to reverse the territorial losses which are incurred by a country, frequently after a war or after a social movement. As a term, ''revanchism'' originated i ...
. French sentiment was based on a desire to avenge military and territorial losses and the displacement of France as the pre-eminent continental military power. Bismarck was wary of the French desire for revenge and achieved peace by isolating France and by balancing the ambitions of Austria-Hungary and Russia in the Balkans. During his later years, he tried to placate the French by encouraging their overseas expansion. However, anti-German sentiment remained.
France eventually recovered from its defeat, paid its war indemnity, and rebuilt its military strength. However, France was smaller than Germany in terms of population and industry and therefore many French felt insecure next to a more powerful neighbor. By the 1890s, the desire for revenge over Alsace-Lorraine was no longer a major factor for the leaders of France but remained a force in public opinion.
Jules Cambon
Jules-Martin Cambon (5 April 1845 – 19 September 1935) was a French diplomat and brother of Paul Cambon. As the ambassador to Germany (1907–1914), he worked hard to secure a friendly détente. He was frustrated by French leaders such as Ray ...
, the French ambassador to Berlin (1907–1914), worked hard to secure a détente, but the French government realized that Berlin was trying to weaken the Triple Entente and at the best, was not sincere in seeking peace. The French consensus was that war was inevitable.
British alignment towards France and Russia, 1898–1907: The Triple Entente
After Bismarck's removal in 1890, French efforts to isolate Germany became successful. With the formation of the informal
Triple Entente
The Triple Entente (from French meaning "friendship, understanding, agreement") describes the informal understanding between the Russian Empire, the French Third Republic, and the United Kingdom of Great Britain and Ireland. It was built upon th ...
, Germany began to feel encircled. French Foreign Minister
Théophile Delcassé
Théophile Delcassé (; 1 March 185222 February 1923) was a French politician who served as foreign minister from 1898 to 1905. He is best known for his hatred of German Empire, Germany and efforts to secure alliances with Russian Empire, Russ ...
went to great pains to woo Russia and Britain. Key markers were the 1894 Franco-Russian Alliance, the 1904
Entente Cordiale
The Entente Cordiale (; ) comprised a series of agreements signed on 8 April 1904 between the United Kingdom of Great Britain and Ireland, United Kingdom and the French Third Republic, French Republic which saw a significant improvement in Fr ...
with Britain, and the 1907
Anglo-Russian Convention
The Anglo-Russian Convention of 1907 (), or Convention between the United Kingdom and Russia relating to Persia, Afghanistan, and Tibet (; ), was signed on August 31, 1907, in Saint Petersburg. It ended the two powers' longstanding rivalry in Cen ...
, which led to the Triple Entente. France's informal alignment with Britain and its formal alliance with Russia against Germany and Austria eventually led Russia and Britain to enter World War I as France's allies.
Britain abandoned its policy of
splendid isolation
Splendid isolation is a term used to describe the 19th-century British diplomatic practice of avoiding permanent alliances from 1815 to 1902. The concept developed as early as 1822, when Britain left the post-1815 Concert of Europe, and continu ...
in the 1900s, after it had been isolated during the
Second Boer War
The Second Boer War (, , 11 October 189931 May 1902), also known as the Boer War, Transvaal War, Anglo–Boer War, or South African War, was a conflict fought between the British Empire and the two Boer republics (the South African Republic and ...
. Britain concluded agreements, limited to colonial affairs, with its two major colonial rivals: the Entente Cordiale with France in 1904 and the Anglo-Russian Entente in 1907. Some historians see Britain's alignment as principally a reaction to an assertive German foreign policy and the buildup of its navy from 1898 that led to the
Anglo-German naval arms race
The arms race between Great Britain and Germany that occurred from the last decade of the nineteenth century until the advent of World War I in 1914 was one of the intertwined causes of that conflict. While based in a bilateral relationship tha ...
.
Other scholars, most notably
, argue that Britain chose France and Russia over Germany because Germany was too weak an ally to provide an effective counterbalance to the other powers and could not provide Britain with the imperial security that was achieved by the Entente agreements. In the words of the British diplomat
Arthur Nicolson, it was "far more disadvantageous to us to have an unfriendly France and Russia than an unfriendly Germany." Ferguson argues that the British government rejected German alliance overtures "not because Germany began to pose a threat to Britain, but, on the contrary because they realized she did not pose a threat." The impact of the Triple Entente was therefore twofold by improving British relations with France and its ally, Russia, and showing the importance to Britain of good relations with Germany. It was "not that antagonism toward Germany caused its isolation, but rather that the new system itself channeled and intensified hostility towards the German Empire."
The Triple Entente between Britain, France, and Russia is often compared to the
Triple Alliance between Germany, Austria–Hungary and Italy, but historians caution against that comparison as simplistic. The Entente, in contrast to the Triple Alliance and the Franco-Russian Alliance, was not an alliance of mutual defence, and so in 1914 Britain felt free to make its own foreign policy decisions. As the
British Foreign Office
The Foreign, Commonwealth and Development Office (FCDO) is the ministry of foreign affairs and a ministerial department of the government of the United Kingdom.
The office was created on 2 September 2020 through the merger of the Foreign an ...
official
Eyre Crowe minuted: "The fundamental fact of course is that the ''Entente'' is not an alliance. For purposes of ultimate emergencies it may be found to have no substance at all. For the ''Entente'' is nothing more than a frame of mind, a view of general policy which is shared by the governments of two countries, but which may be, or become, so vague as to lose all content."
A series of diplomatic incidents between 1905 and 1914 heightened tensions between the Great Powers and reinforced the existing alignments, beginning with the First Moroccan Crisis.
First Moroccan Crisis, 1905–06: Strengthening the Entente
The
First Moroccan Crisis
The First Moroccan Crisis or the Tangier Crisis was an international crisis between March 31, 1905, and April 7, 1906, over the status of Morocco. Germany wanted to challenge France's growing control over Morocco, aggravating France and Great Br ...
was an international dispute between March 1905 and May 1906 over the status of Morocco. The crisis worsened German relations with both France and Britain, and helped ensure the success of the new Entente Cordiale. In the words of the historian
Christopher Clark, "The Anglo-French Entente was strengthened rather than weakened by the German challenge to France in Morocco." Due to this crisis,
Spain
Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...
turned to the United Kingdom and France, and signed the
Pact of Cartagena of 1907. Spain received British help to build the new
España-class battleship.
Bosnian Crisis, 1908: Worsening relations of Russia and Serbia with Austria-Hungary
In 1908, Austria-Hungary announced its
annexation of Bosnia and Herzegovina, provinces in the
Balkans
The Balkans ( , ), corresponding partially with the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throug ...
. Bosnia and Herzegovina had been nominally under the sovereignty of the
Ottoman Empire
The Ottoman Empire (), also called the Turkish Empire, was an empire, imperial realm that controlled much of Southeast Europe, West Asia, and North Africa from the 14th to early 20th centuries; it also controlled parts of southeastern Centr ...
but administered by Austria-Hungary since the
Congress of Berlin
At the Congress of Berlin (13 June – 13 July 1878), the major European powers revised the territorial and political terms imposed by the Russian Empire on the Ottoman Empire by the Treaty of San Stefano (March 1878), which had ended the Rus ...
in 1878. The announcement upset the fragile balance of power in the Balkans and enraged Serbia and
pan-Slavic nationalists throughout Europe. The weakened Russia was forced to submit to its humiliation, but its foreign office still viewed Austria-Hungary's actions as overly aggressive and threatening. Russia's response was to encourage pro-Russian and
anti-Austrian sentiment in Serbia and other Balkan provinces, provoking Austrian fears of Slavic expansionism in the region.
Agadir crisis in Morocco, 1911
Imperial rivalries pushed France, Germany, and Britain to compete for control of Morocco, leading to a short-lived war scare in 1911. In the end, France established a
protectorate over Morocco that increased European tensions. The
Agadir Crisis
The Agadir Crisis, Agadir Incident, or Second Moroccan Crisis, was a brief crisis sparked by the deployment of a substantial force of French troops in the interior of Morocco in July 1911 and the deployment of the German gunboat to Agadir, ...
resulted from the deployment of a substantial force of French troops into the interior of Morocco in April 1911. Germany reacted by sending the gunboat to the Moroccan port of
Agadir
Agadir (, ; ) is a major List of cities in Morocco, city in Morocco, on the shore of the Atlantic Ocean near the foot of the Atlas Mountains, just north of the point where the Sous River, Souss River flows into the ocean, and south of Casabla ...
on 1 July 1911. The main result was deeper suspicion between London and Berlin and closer military ties between London and Paris.
British backing of France during the crisis reinforced the Entente between the two countries and with Russia, increased Anglo-German estrangement, and deepened the divisions that would erupt in 1914. In terms of internal British jousting, the crisis was part of a five-year struggle inside the British cabinet between Radical isolationists and the
Liberal Party
The Liberal Party is any of many political parties around the world.
The meaning of ''liberal'' varies around the world, ranging from liberal conservatism on the right to social liberalism on the left. For example, while the political systems ...
's imperialist interventionists. The interventionists sought to use the Triple Entente to contain German expansion. The Radical isolationists obtained an agreement for official cabinet approval of all initiatives that might lead to war. However, the interventionists were joined by the two leading Radicals,
David Lloyd George
David Lloyd George, 1st Earl Lloyd-George of Dwyfor (17 January 1863 – 26 March 1945) was Prime Minister of the United Kingdom from 1916 to 1922. A Liberal Party (United Kingdom), Liberal Party politician from Wales, he was known for leadi ...
and
Winston Churchill
Sir Winston Leonard Spencer Churchill (30 November 1874 – 24 January 1965) was a British statesman, military officer, and writer who was Prime Minister of the United Kingdom from 1940 to 1945 (Winston Churchill in the Second World War, ...
. Lloyd George's famous
Mansion House speech
David Lloyd George, 1st Earl Lloyd-George of Dwyfor (17 January 1863 – 26 March 1945) was Prime Minister of the United Kingdom from 1916 to 1922. A Liberal Party politician from Wales, he was known for leading the United Kingdom during the ...
of 21 July 1911 angered the Germans and encouraged the French.
The crisis led British Foreign Secretary
Edward Grey, a Liberal, and French leaders to make a secret naval agreement by which the Royal Navy would protect the northern coast of France from German attack, and France agreed to concentrate the
French Navy
The French Navy (, , ), informally (, ), is the Navy, maritime arm of the French Armed Forces and one of the four military service branches of History of France, France. It is among the largest and most powerful List of navies, naval forces i ...
in the
western Mediterranean
The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern Eur ...
and to protect British interests there. France was thus able to guard its communications with its
North African colonies, and Britain to concentrate more force in
home waters to oppose the
German High Seas Fleet. The British cabinet was not informed of the agreement until August 1914. Meanwhile, the episode strengthened the hand of German Admiral
Alfred von Tirpitz
Alfred Peter Friedrich von Tirpitz (; born Alfred Peter Friedrich Tirpitz; 19 March 1849 – 6 March 1930) was a German grand admiral and State Secretary of the German Imperial Naval Office, the powerful administrative branch of the German Imperi ...
, who was calling for a greatly-increased navy and obtained it in 1912.
The American historian
Raymond James Sontag argues that Agadir was a comedy of errors that became a tragic prelude to the World War I:
The crisis seems comic—its obscure origin, the questions at stake, the conduct of the actors—all comic. The results were tragic. Tension between France and Germany and between Germany and England have been increased; the armaments race receive new impetus; the conviction that an early war was inevitable spread through the governing class of Europe.
Italo-Turkish War: Isolation of the Ottomans, 1911–1912
In the
Italo-Turkish War
The Italo-Turkish (, "Tripolitanian War", , "War of Libya"), also known as the Turco-Italian War, was fought between the Kingdom of Italy and the Ottoman Empire from 29 September 1911 to 18 October 1912. As a result of this conflict, Italy captur ...
, the
Kingdom of Italy
The Kingdom of Italy (, ) was a unitary state that existed from 17 March 1861, when Victor Emmanuel II of Kingdom of Sardinia, Sardinia was proclamation of the Kingdom of Italy, proclaimed King of Italy, until 10 June 1946, when the monarchy wa ...
defeated the Ottoman Empire in North Africa in 1911–1912. Italy easily captured the important coastal cities, but
its army failed to advance far into the interior. Italy captured the Ottoman
Tripolitania Vilayet, a province whose most notable subprovinces, or sanjaks, were
Fezzan
Fezzan ( , ; ; ; ) is the southwestern region of modern Libya. It is largely desert, but broken by mountains, uplands, and dry river valleys (wadis) in the north, where oases enable ancient towns and villages to survive deep in the otherwise in ...
,
Cyrenaica
Cyrenaica ( ) or Kyrenaika (, , after the city of Cyrene), is the eastern region of Libya. Cyrenaica includes all of the eastern part of Libya between the 16th and 25th meridians east, including the Kufra District. The coastal region, als ...
, and
Tripoli itself. The territories together formed what was later known as
Italian Libya
Libya (; ) was a colony of Fascist Italy (1922–1943), Italy located in North Africa, in what is now modern Libya, between 1934 and 1943. It was formed from the unification of the colonies of Italian Cyrenaica, Cyrenaica and Italian Tripolitan ...
. The main significance for World War I was that it was now clear that no Great Power still appeared to wish to support the Ottoman Empire, which paved the way for the
Balkan Wars
The Balkan Wars were two conflicts that took place in the Balkans, Balkan states in 1912 and 1913. In the First Balkan War, the four Balkan states of Kingdom of Greece (Glücksburg), Greece, Kingdom of Serbia, Serbia, Kingdom of Montenegro, M ...
. Christopher Clark stated, "Italy launched a war of conquest on an African province of the Ottoman Empire, triggering a chain of opportunistic assaults on Ottoman territories across the Balkans. The system of geographical balances that had enabled local conflicts to be contained was swept away."
Balkan Wars, 1912–13: Growth of Serbian and Russian power
The Balkan Wars were two conflicts that took place in the
Balkan Peninsula
The Balkans ( , ), corresponding partially with the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throug ...
in southeastern Europe in 1912 and 1913. Four Balkan states defeated the Ottoman Empire in the
first war; one of them, Bulgaria, was defeated in the
second war. The Ottoman Empire lost nearly all of its territory in Europe. Austria-Hungary, although not a combatant, was weakened, as a much-enlarged
Kingdom of Serbia
The Kingdom of Serbia was a country located in the Balkans which was created when the ruler of the Principality of Serbia, Milan I of Serbia, Milan I, was proclaimed king in 1882. Since 1817, the Principality was ruled by the Obrenović dynast ...
pushed for union of all
South Slavs
South Slavs are Slavic people who speak South Slavic languages and inhabit a contiguous region of Southeast Europe comprising the eastern Alps and the Balkan Peninsula. Geographically separated from the West Slavs and East Slavs by Austria, ...
.
The Balkan Wars in 1912–1913 increased international tension between Russia and Austria-Hungary. It also led to a strengthening of Serbia and a weakening of the Ottoman Empire and Bulgaria, which might otherwise have kept Serbia under control, thus disrupting the balance of power in Europe toward Russia.
Russia initially agreed to avoid territorial changes, but later in 1912, it supported Serbia's demand for an Albanian port. The
London Conference of 1912–13 agreed to create an independent
Albania
Albania ( ; or ), officially the Republic of Albania (), is a country in Southeast Europe. It is located in the Balkans, on the Adriatic Sea, Adriatic and Ionian Seas within the Mediterranean Sea, and shares land borders with Montenegro to ...
, but both Serbia and Montenegro refused to comply. After an Austrian and then an international naval demonstration in early 1912 and Russia's withdrawal of support, Serbia backed down. Montenegro was not as compliant, and on May 2, the Austrian council of ministers met and decided to give Montenegro a last chance to comply, or it would resort to military action. However, seeing the Austro-Hungarian military preparations, the Montenegrins requested for the ultimatum to be delayed, and they complied.

The Serbian government, having failed to get Albania, now demanded for the other spoils of the
First Balkan War
The First Balkan War lasted from October 1912 to May 1913 and involved actions of the Balkan League (the Kingdoms of Kingdom of Bulgaria, Bulgaria, Kingdom of Serbia, Serbia, Kingdom of Greece, Greece and Kingdom of Montenegro, Montenegro) agai ...
to be reapportioned, and Russia failed to pressure Serbia to back down. Serbia and Greece allied against Bulgaria, which responded with a pre-emptive strike against their forces and so began the
Second Balkan War
The Second Balkan War was a conflict that broke out when Kingdom of Bulgaria, Bulgaria, dissatisfied with its share of the spoils of the First Balkan War, attacked its former allies, Kingdom of Serbia, Serbia and Kingdom of Greece, Greece, on 1 ...
. The Bulgarian army crumbled quickly after the Ottoman Empire and Romania joined the war.
The Balkan Wars strained the German alliance with Austria-Hungary. The attitude of the German government to Austro-Hungarian requests of support against Serbia was initially divided and inconsistent. After the German
Imperial War Council of 8 December 1912, it was clear that Germany was not ready to support Austria-Hungary in a war against Serbia and its likely allies.
In addition, German diplomacy before, during, and after the Second Balkan War was pro-Greek and pro-Romanian and against Austria-Hungary's increasing pro-Bulgarian sympathies. The result was tremendous damage to relations between both empires. Austro-Hungarian Foreign Minister
Leopold von Berchtold remarked to the German ambassador,
Heinrich von Tschirschky in July 1913, "Austria-Hungary might as well belong 'to the other grouping' for all the good Berlin had been."
In September 1913, it was learned that Serbia was moving into Albania, and Russia was doing nothing to restrain it, and the Serbian government would not guarantee to respect Albania's territorial integrity and suggested that some frontier modifications would occur. In October 1913, the council of ministers decided to send Serbia a warning followed by an ultimatum for Germany and Italy to be notified of some action and asked for support and for spies to be sent to report if there was an actual withdrawal. Serbia responded to the warning with defiance, and the ultimatum was dispatched on October 17 and received the following day. It demanded for Serbia to evacuate from Albania within eight days. After Serbia complied, the Kaiser made a congratulatory visit to Vienna to try to fix some of the damage done earlier in the year.
By then, Russia had mostly recovered from its defeat in the
Russo-Japanese War
The Russo-Japanese War (8 February 1904 – 5 September 1905) was fought between the Russian Empire and the Empire of Japan over rival imperial ambitions in Manchuria and the Korean Empire. The major land battles of the war were fought on the ...
, and the calculations of Germany and Austria were driven by a fear that Russia would eventually become too strong to be challenged. The conclusion was that any war with Russia had to occur within the next few years to have any chance of success.
Franco-Russian Alliance changes to Balkan inception scenario, 1911–1913
The original Franco-Russian alliance was formed to protect both France and Russia from a German attack. In the event of such an attack, both states would mobilize in tandem, placing Germany under the threat of a
two-front war
In military terminology, a two-front war occurs when opposing forces encounter on two geographically separate fronts. The forces of two or more allied parties usually simultaneously engage an opponent in order to increase their chances of succes ...
. However, there were limits placed on the alliance so that it was essentially defensive in character.
Throughout the 1890s and the 1900s, the French and the Russians made clear the limits of the alliance did not extend to provocations caused by each other's adventurous foreign policy. For example, Russia warned France that the alliance would not operate if the French provoked the Germans in North Africa. Equally, the French insisted that the Russians should not use the alliance to provoke Austria-Hungary or Germany in the Balkans and that France did not recognize in the Balkans a vital strategic interest for France or Russia.
That changed in the last 18 to 24 months before the outbreak of the war. At the end of 1911, particularly during the
Balkan Wars
The Balkan Wars were two conflicts that took place in the Balkans, Balkan states in 1912 and 1913. In the First Balkan War, the four Balkan states of Kingdom of Greece (Glücksburg), Greece, Kingdom of Serbia, Serbia, Kingdom of Montenegro, M ...
in 1912–1913, the French view changed to accept the importance of the Balkans to Russia. Moreover, France clearly stated that if, as a result of a conflict in the Balkans, war broke out between Austria-Hungary and Serbia, France would stand by Russia. Thus, the alliance changed in character and Serbia now became a security salient for Russia and France. A war of Balkan inception, regardless of who started such a war, would cause the alliance to respond by viewing the conflict as a ''
casus foederis'', a trigger for the alliance.
Christopher Clark described that change as "a very important development in the pre-war system which made the events of 1914 possible."
Otte also agrees that France became significantly less keen on restraining Russia after the Austro-Serbian crisis of 1912, and sought to embolden Russia against Austria. The Russian ambassador conveyed Poincare's message as saying that "if Russia wages war, France also wages war."
Liman von Sanders Affair: 1913-14
This was a crisis caused by the appointment of an
Imperial German Army
The Imperial German Army (1871–1919), officially referred to as the German Army (), was the unified ground and air force of the German Empire. It was established in 1871 with the political unification of Germany under the leadership of Kingdom o ...
officer,
Otto Liman von Sanders, to command the
Ottoman First Army Corps guarding
Constantinople
Constantinople (#Names of Constantinople, see other names) was a historical city located on the Bosporus that served as the capital of the Roman Empire, Roman, Byzantine Empire, Byzantine, Latin Empire, Latin, and Ottoman Empire, Ottoman empire ...
and the subsequent Russian objections. In November, 1913, Russian Foreign Minister
Sergei Sazonov complained to Berlin that the Sanders mission was an "openly hostile act." In addition to threatening Russia's foreign trade, half of which flowed through the Turkish Straits, the mission raised the possibility of a German-led Ottoman assault on Russia's
Black Sea
The Black Sea is a marginal sea, marginal Mediterranean sea (oceanography), mediterranean sea lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bound ...
ports, and it imperiled Russian plans for expansion in eastern
Anatolia
Anatolia (), also known as Asia Minor, is a peninsula in West Asia that makes up the majority of the land area of Turkey. It is the westernmost protrusion of Asia and is geographically bounded by the Mediterranean Sea to the south, the Aegean ...
. A compromise arrangement was agreed for Sanders to be appointed to the rather less senior and less influential position of Inspector General in January 1914. When the war came Sanders provided only limited help to the Ottoman forces.
Anglo-German détente, 1912–14
Historians have cautioned that taken together, the preceding crises should not be seen as an argument that a European war was inevitable in 1914.

Although the
Haldane Mission of February 1912 failed to halt the
Anglo-German naval arms race
The arms race between Great Britain and Germany that occurred from the last decade of the nineteenth century until the advent of World War I in 1914 was one of the intertwined causes of that conflict. While based in a bilateral relationship tha ...
, the race suddenly paused in late 1912 as Germany cut its naval budget. In April 1913, Britain and Germany signed an agreement over the
African territories of the
Portuguese Empire
The Portuguese Empire was a colonial empire that existed between 1415 and 1999. In conjunction with the Spanish Empire, it ushered in the European Age of Discovery. It achieved a global scale, controlling vast portions of the Americas, Africa ...
, which was expected to collapse imminently. (That empire lasted into the 1970s.) Moreover, the Russians were again threatening British interests in
Persia
Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort ...
and
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
. The British were "deeply annoyed by St Petersburg's failure to observe the terms of the agreement struck in 1907 and began to feel an arrangement of some kind with Germany might serve as a useful corrective." Despite the 1908 interview in ''
The Daily Telegraph
''The Daily Telegraph'', known online and elsewhere as ''The Telegraph'', is a British daily broadsheet conservative newspaper published in London by Telegraph Media Group and distributed in the United Kingdom and internationally. It was found ...
'', which implied that Kaiser Wilhelm wanted war, he came to be regarded as a guardian of peace. After the Moroccan Crisis, in the Anglo-German press wars, previously an important feature of international politics during the first decade of the century, virtually ceased. In early 1913,
H. H. Asquith
Herbert Henry Asquith, 1st Earl of Oxford and Asquith (12 September 1852 – 15 February 1928) was a British statesman and Liberal Party (UK), Liberal politician who was Prime Minister of the United Kingdom from 1908 to 1916. He was the last ...
stated, "Public opinion in both countries seems to point to an intimate and friendly understanding." The end of the naval arms race, the relaxation of colonial rivalries, and the increased diplomatic co-operation in the Balkans all resulted in an improvement in Germany's image in Britain by the eve of the war.
The British diplomat Arthur Nicolson wrote in May 1914, "Since I have been at the Foreign Office I have not seen such calm waters." The Anglophile German Ambassador
Karl Max, Prince Lichnowsky
Karl Max, Prince Lichnowsky (8 March 1860 – 27 February 1928) was a German diplomat who served as ambassador to Britain during the July Crisis and who was the author of a 1916 pamphlet that deplored German diplomacy in mid-1914 which, he argue ...
, deplored that Germany had acted hastily without waiting for the British offer of mediation in July 1914 to be given a chance.
Domestic political factors
Drivers of Austro-Hungarian policy

Following the 1914
July Crisis
The July Crisis was a series of interrelated diplomatic and military escalations among the Great power, major powers of Europe in mid-1914, Causes of World War I, which led to the outbreak of World War I. It began on 28 June 1914 when the Serbs ...
,
Austria-Hungary
Austria-Hungary, also referred to as the Austro-Hungarian Empire, the Dual Monarchy or the Habsburg Monarchy, was a multi-national constitutional monarchy in Central Europe#Before World War I, Central Europe between 1867 and 1918. A military ...
described its declaration of war on the
Kingdom of Serbia
The Kingdom of Serbia was a country located in the Balkans which was created when the ruler of the Principality of Serbia, Milan I of Serbia, Milan I, was proclaimed king in 1882. Since 1817, the Principality was ruled by the Obrenović dynast ...
as "defensive". Jack Levy and William Mulligan argued in 2021 that the death of Franz Ferdinand itself was a significant factor in helping escalate the July Crisis into a war by killing a powerful proponent for peace and thus encouraged a more belligerent decision-making process.
British historian Marvin B. Fried wrote in 2015: "Historians of the Dual Monarchy agree that, at the outbreak of the war in July 1914, few of its leaders had any specific war aims in mind beyond the military defeat and political subjugation of Serbia. However, once the Monarchy was at war with Russia and it was clear that the conflict would not be as short as originally hoped, the Austro-Hungarian leadership began to develop detailed, and ultimately very extensive, war aims which formed the subject of furious debate at the highest echelons of power."
According to German historian
Fritz Fischer (1967) and Austrian historian Manfried Rauchensteiner (1993), the acquisition of
Congress Poland
Congress Poland or Congress Kingdom of Poland, formally known as the Kingdom of Poland, was a polity created in 1815 by the Congress of Vienna as a semi-autonomous Polish state, a successor to Napoleon's Duchy of Warsaw. It was established w ...
became Vienna's principal war aim as early as autumn 1914, when Habsburg diplomats discussed the possibility of an Austro-Polish dynastic union in talks with Germany.
Lothar Höbelt (2012) demonstrated that Austro-Hungarian officials had made separating Poland from the Russian Empire a clear policy goal from mid-August 1914 onward. But there were disagreements on whether to support an independent Polish state (which would however embolden nationalist separatists inside the Habsburg Empire itself), to add Poland as a third kingdom next to Austria and Hungary (which the Hungarians strongly opposed), or to unify Congress Poland and Galicia as an integral part of
Cisleithania
Cisleithania, officially The Kingdoms and Lands Represented in the Imperial Council (), was the northern and western part of Austria-Hungary, the Dual Monarchy created in the Compromise of 1867—as distinguished from ''Transleithania'' (i.e., ...
under Austrian suzerainty (the preferred option). Even before the war, Austrian politicians sought to obtain Russian Poland for two main reasons: to strengthen Cisleithania as opposed to Hungary-dominated
Transleithania
The Lands of the Crown of Saint Stephen (), informally Transleithania (meaning the lands or region "beyond" the Leitha River), were the Hungarian territories of Austria-Hungary, throughout the latter's entire existence (30 March 1867 – 16 ...
, and to appease the Galician Polish aristocrats who, in exchange for the privilege of dominating the
Kingdom of Galicia and Lodomeria
The Kingdom of Galicia and Lodomeria, also known as Austrian Galicia or colloquially Austrian Poland, was a constituent possession of the Habsburg monarchy in the historical region of Galicia (Eastern Europe), Galicia in Eastern Europe. The Cr ...
(at the expense of the
Ukrainian ("Ruthenian") majority in
Eastern Galicia
Eastern Galicia (; ; ) is a geographical region in Western Ukraine (present day oblasts of Lviv Oblast, Lviv, Ivano-Frankivsk Oblast, Ivano-Frankivsk and Ternopil Oblast, Ternopil), having also essential historic importance in Poland.
Galicia ( ...
), was deeply loyal to the Austrian dynasty. Strengthening the position of the Galician Polish aristocratic loyalists also had the added benefit of counterbalancing the Czech demands for more autonomy, and the "Austro-Polish" or "Cisleithanian" option was the only feasible Austrian territorial expansion that would not provoke the Magyars in Hungary, who opposed constitutional changes.
The argument that Austria-Hungary was a moribund political entity, whose disappearance was only a matter of time, was deployed by hostile contemporaries to suggest that its efforts to defend its integrity during the last years before the war were, in some sense, illegitimate.
Clark states, "Evaluating the prospects of the Austro-Hungarian empire on the eve of the first world war confronts us in an acute way with the problem of temporal perspective.... The collapse of the empire amid war and defeat in 1918 impressed itself upon the retrospective view of the Habsburg lands, overshadowing the scene with auguries of imminent and ineluctable decline."
It is true that Austro-Hungarian politics in the decades before the war were increasingly dominated by the struggle for national rights among the empire's eleven official nationalities:
Germans
Germans (, ) are the natives or inhabitants of Germany, or sometimes more broadly any people who are of German descent or native speakers of the German language. The Basic Law for the Federal Republic of Germany, constitution of Germany, imple ...
,
Hungarians
Hungarians, also known as Magyars, are an Ethnicity, ethnic group native to Hungary (), who share a common Culture of Hungary, culture, Hungarian language, language and History of Hungary, history. They also have a notable presence in former pa ...
,
Czechs
The Czechs (, ; singular Czech, masculine: ''Čech'' , singular feminine: ''Češka'' ), or the Czech people (), are a West Slavs, West Slavic ethnic group and a nation native to the Czech Republic in Central Europe, who share a common Bohemia ...
,
Slovaks
The Slovaks ( (historical Sloveni ), singular: ''Slovák'' (historical: ''Sloven'' ), feminine: ''Slovenka'' , plural: ''Slovenky'') are a West Slavic ethnic group and nation native to Slovakia who share a common ancestry, culture, history ...
,
Slovenes
The Slovenes, also known as Slovenians ( ), are a South Slavs, South Slavic ethnic group native to Slovenia and adjacent regions in Italy, Austria and Hungary. Slovenes share a common ancestry, Slovenian culture, culture, and History of Slove ...
,
Croats
The Croats (; , ) are a South Slavs, South Slavic ethnic group native to Croatia, Bosnia and Herzegovina and other neighboring countries in Central Europe, Central and Southeastern Europe who share a common Croatian Cultural heritage, ancest ...
,
Serbs
The Serbs ( sr-Cyr, Срби, Srbi, ) are a South Slavs, South Slavic ethnic group native to Southeastern Europe who share a common Serbian Cultural heritage, ancestry, Culture of Serbia, culture, History of Serbia, history, and Serbian lan ...
,
Romanians
Romanians (, ; dated Endonym and exonym, exonym ''Vlachs'') are a Romance languages, Romance-speaking ethnic group and nation native to Central Europe, Central, Eastern Europe, Eastern, and Southeastern Europe. Sharing a Culture of Romania, ...
,
Ruthenians
A ''Ruthenian'' and ''Ruthene'' are exonyms of Latin language, Latin origin, formerly used in Eastern and Central Europe as common Ethnonym, ethnonyms for East Slavs, particularly during the late medieval and early modern periods. The Latin term ...
(
Ukrainians
Ukrainians (, ) are an East Slavs, East Slavic ethnic group native to Ukraine. Their native tongue is Ukrainian language, Ukrainian, and the majority adhere to Eastern Orthodox Church, Eastern Orthodoxy, forming the List of contemporary eth ...
),
Poles
Pole or poles may refer to:
People
*Poles (people), another term for Polish people, from the country of Poland
* Pole (surname), including a list of people with the name
* Pole (musician) (Stefan Betke, born 1967), German electronic music artist
...
, and
Italians
Italians (, ) are a European peoples, European ethnic group native to the Italian geographical region. Italians share a common Italian culture, culture, History of Italy, history, Cultural heritage, ancestry and Italian language, language. ...
. However, before 1914, radical nationalists seeking full separation from the empire were still a small minority, and Austria-Hungary's political turbulence was more noisy than deep.
In fact, in the decade before the war, the Habsburg lands passed through a phase of strong, widely-shared economic growth. Most inhabitants associated the Habsburgs with the benefits of orderly government, public education, welfare, sanitation, the rule of law, and the maintenance of a sophisticated infrastructure.
Christopher Clark states: "Prosperous and relatively well administered, the empire, like its elderly sovereign, exhibited a curious stability amid turmoil. Crises came and went without appearing to threaten the existence of the system as such. The situation was always, as the Viennese journalist
Karl Kraus quipped, 'desperate but not serious'."
German domestic politics
Left-wing parties, especially the
Social Democratic Party of Germany
The Social Democratic Party of Germany ( , SPD ) is a social democratic political party in Germany. It is one of the major parties of contemporary Germany. Saskia Esken has been the party's leader since the 2019 leadership election together w ...
(SPD), made large gains in the
1912 German federal election
Elections in Germany#German elections from 1871 to 1945, Federal elections were held in German Empire, Germany on 12 January 1912.Dieter Nohlen & Philip Stöver (2010) ''Elections in Europe: A data handbook'', p762 Although the Social Democrati ...
. The German government was still dominated by the
Prussian Junkers
The Junkers ( ; ) were members of the landed nobility in Prussia. They owned great estates that were maintained and worked by peasants with few rights. These estates often lay in the countryside outside of major cities or towns. They were an impor ...
, who feared the rise of left-wing parties.
Fritz Fischer famously argued that the Junker class deliberately sought an external war to distract the population and to whip up patriotic support for the government. Indeed, one German military leader,
Moritz von Lynker, the chief of the military cabinet, wanted war in 1909 because it was "desirable in order to escape from difficulties at home and abroad." The Conservative Party leader Ernst von Heydebrand und der Lasa suggested that "a war would strengthen patriarchal order."
Other authors argue that
German conservatives were ambivalent about a war for fear that losing a war would have disastrous consequences and believed that even a successful war might alienate the population if it was lengthy or difficult. Many German people complained of a need to conform to the euphoria around them, which allowed later
Nazi propagandists to "foster an image of national fulfillment later destroyed by wartime betrayal and subversion culminating in the alleged ''
Dolchstoss'' (stab in the back) of the army by socialists."
However,
David G. Williamson believes that despite the ambivalence felt among some in the German Empire in its main land in Europe, especially certain actors in the
labor movement
The labour movement is the collective organisation of working people to further their shared political and economic interests. It consists of the trade union or labour union movement, as well as political parties of labour. It can be considere ...
, the
spirit of 1914 was widely shared enough among all social classes to prove that the Empire was the primary cause of World War I.
Drivers of Italian policy

Even after 1870, after the
unification of Italy
The unification of Italy ( ), also known as the Risorgimento (; ), was the 19th century Political movement, political and social movement that in 1861 ended in the Proclamation of the Kingdom of Italy, annexation of List of historic states of ...
, many ethnic Italian-speakers (Italians in
Trentino-Alto Adige/Südtirol
Trentino-Alto Adige/Südtirol ( ; ; ), often known in English as Trentino-South Tyrol or by its shorter Italian name Trentino-Alto Adige, is an Regions of Italy#Autonomous regions with special statute, autonomous region of Italy, located in the ...
,
Savoyard Italians,
Corfiot Italians,
Niçard Italians
Niçard Italians ( ) are Italians who have full or partial County of Nice, Nice heritage by birth or ethnicity.
History
Niçard Italians have roots in Nice and the County of Nice. They often speak the Ligurian language after Nice joined the Genoa ...
,
Swiss Italians,
Corsican Italians,
Maltese Italians,
Istrian Italians, and
Dalmatian Italians
Dalmatian Italians (; ) are the historical Italian national minority living in the region of Dalmatia, now part of Croatia and Montenegro.
Historically, Italian language-speaking Dalmatians accounted for 12.5% of population in 1865, 5.8% in 18 ...
) remained outside the borders of the
Kingdom of Italy
The Kingdom of Italy (, ) was a unitary state that existed from 17 March 1861, when Victor Emmanuel II of Kingdom of Sardinia, Sardinia was proclamation of the Kingdom of Italy, proclaimed King of Italy, until 10 June 1946, when the monarchy wa ...
, planting the seeds of
Italian irredentism
Italian irredentism ( ) was a political movement during the late 19th and early 20th centuries in Kingdom of Italy, Italy with irredentism, irredentist goals which promoted the Unification of Italy, unification of geographic areas in which indig ...
.
Italy
entered into the World War I in 1915 with the aim of completing national unity: for this reason, the Italian intervention in the World War I is also considered the
Fourth Italian War of Independence, in a historiographical perspective that identifies in the latter the conclusion of the unification of Italy, whose military actions began during the
revolutions of 1848
The revolutions of 1848, known in some countries as the springtime of the peoples or the springtime of nations, were a series of revolutions throughout Europe over the course of more than one year, from 1848 to 1849. It remains the most widespre ...
with the
First Italian War of Independence
The First Italian War of Independence (), part of the ''Risorgimento'' or unification of Italy, was fought by the Kingdom of Sardinia (1720–1861), Kingdom of Sardinia (Piedmont) and Italian volunteers against the Austrian Empire and other conse ...
.
After the
Capture of Rome
The Capture of Rome () occurred on 20 September 1870, as forces of the Kingdom of Italy took control of the city and of the Papal States. After a plebiscite held on 2 October 1870, Rome was officially made capital of Italy on 3 February 1871, c ...
(1870), almost the whole of Italy was united in a single state, the
Kingdom of Italy
The Kingdom of Italy (, ) was a unitary state that existed from 17 March 1861, when Victor Emmanuel II of Kingdom of Sardinia, Sardinia was proclamation of the Kingdom of Italy, proclaimed King of Italy, until 10 June 1946, when the monarchy wa ...
. However, the so-called "irredent lands" were missing, that is, Italian-speaking, geographically or historically Italian lands that were not yet part of the unitary state. Among the irredent lands still belonging to
Austria-Hungary
Austria-Hungary, also referred to as the Austro-Hungarian Empire, the Dual Monarchy or the Habsburg Monarchy, was a multi-national constitutional monarchy in Central Europe#Before World War I, Central Europe between 1867 and 1918. A military ...
were usually indicated as such:
Julian March
The Julian March ( Croatian and ), also called Julian Venetia (; ; ; ), is an area of southern Central Europe which is currently divided among Croatia, Italy, and Slovenia. (with the city of
Fiume
Rijeka (;
Fiume ( �fjuːme in Italian and in Fiuman Venetian) is the principal seaport and the third-largest city in Croatia. It is located in Primorje-Gorski Kotar County on Kvarner Bay, an inlet of the Adriatic Sea and in 2021 had a po ...
),
Trentino-Alto Adige and
Dalmatia
Dalmatia (; ; ) is a historical region located in modern-day Croatia and Montenegro, on the eastern shore of the Adriatic Sea. Through time it formed part of several historical states, most notably the Roman Empire, the Kingdom of Croatia (925 ...
.
The
Italian irredentism
Italian irredentism ( ) was a political movement during the late 19th and early 20th centuries in Kingdom of Italy, Italy with irredentism, irredentist goals which promoted the Unification of Italy, unification of geographic areas in which indig ...
movement, which aimed at the reunification of the aforementioned with the motherland and therefore their consequent
redemption, was active precisely between the last decades of the 19th century and the early 20th century. It was precisely in the irredentist sphere that the theme of the need for a "Fourth Italian War of Independence" against Austria-Hungary began to develop in the last decades of the 19th century, when Italy was still firmly incorporated in the
Triple Alliance; also the
Italo-Turkish War
The Italo-Turkish (, "Tripolitanian War", , "War of Libya"), also known as the Turco-Italian War, was fought between the Kingdom of Italy and the Ottoman Empire from 29 September 1911 to 18 October 1912. As a result of this conflict, Italy captur ...
was seen, in the irredentist context, as part of this theme.
In Italy, society was divided over the war: Italian socialists generally opposed the war and supported
pacifism
Pacifism is the opposition to war or violence. The word ''pacifism'' was coined by the French peace campaigner Émile Arnaud and adopted by other peace activists at the tenth Universal Peace Congress in Glasgow in 1901. A related term is ...
, while nationalists militantly supported the war. Long-time nationalists
Gabriele D'Annunzio and
Luigi Federzoni
Luigi Federzoni (27 September 1878 – 24 January 1967) was an Italian nationalist and later Fascist politician.
Biography
Federzoni was born in Bologna. Educated at the university there, he took to journalism and literature, and for several ye ...
, together with a former socialist journalist and new convert to nationalist sentiment, future Fascist dictator
Benito Mussolini
Benito Amilcare Andrea Mussolini (29 July 188328 April 1945) was an Italian politician and journalist who, upon assuming office as Prime Minister of Italy, Prime Minister, became the dictator of Fascist Italy from the March on Rome in 1922 un ...
, demanded that Italy join the war. For nationalists, Italy had to maintain its alliance with the
Central Powers
The Central Powers, also known as the Central Empires,; ; , ; were one of the two main coalitions that fought in World War I (1914–1918). It consisted of the German Empire, Austria-Hungary, the Ottoman Empire, and the Kingdom of Bulga ...
to gain colonial territories at the expense of France. For the liberals, the war presented Italy a long-awaited opportunity to use an alliance with the
Triple Entente
The Triple Entente (from French meaning "friendship, understanding, agreement") describes the informal understanding between the Russian Empire, the French Third Republic, and the United Kingdom of Great Britain and Ireland. It was built upon th ...
to gain certain Italian-populated and other territories from Austria-Hungary, which had long been part of Italian patriotic aims since unification. In 1915, relatives of Italian revolutionary and republican hero
Giuseppe Garibaldi
Giuseppe Maria Garibaldi ( , ;In his native Ligurian language, he is known as (). In his particular Niçard dialect of Ligurian, he was known as () or (). 4 July 1807 – 2 June 1882) was an Italian general, revolutionary and republican. H ...
died on the battlefield of France, where they had volunteered to fight. Federzoni used the memorial services to declare the importance of Italy joining the war and to warn the monarchy of the consequences of continued disunity in Italy if it did not:
Mussolini used his new newspaper ''
Il Popolo d'Italia'' and his strong oratorical skills to urge a broad political audience – ranging from right-wing nationalists to patriotic revolutionary leftists – to support Italy's entry into the war to gain back Italian-populated territories from Austria-Hungary, by saying "enough of
Libya
Libya, officially the State of Libya, is a country in the Maghreb region of North Africa. It borders the Mediterranean Sea to the north, Egypt to Egypt–Libya border, the east, Sudan to Libya–Sudan border, the southeast, Chad to Chad–L ...
, and on to
Trento
Trento ( or ; Ladin language, Ladin and ; ; ; ; ; ), also known in English as Trent, is a city on the Adige, Adige River in Trentino-Alto Adige/Südtirol in Italy. It is the capital of the Trentino, autonomous province of Trento. In the 16th ...
and
Trieste
Trieste ( , ; ) is a city and seaport in northeastern Italy. It is the capital and largest city of the Regions of Italy#Autonomous regions with special statute, autonomous region of Friuli-Venezia Giulia, as well as of the Province of Trieste, ...
".
[(Thayer, John A. (1964). ''Italy and the Great War.'' Madison and Milwaukee: University of Wisconsin Press. p279)] Although the left was traditionally opposed to war, Mussolini claimed that this time it was in their interest to join the war to tear down the aristocratic
Hohenzollern
The House of Hohenzollern (, ; , ; ) is a formerly royal (and from 1871 to 1918, imperial) German dynasty whose members were variously princes, electors, kings and emperors of Hohenzollern, Brandenburg, Prussia, the German Empire, and Romania. ...
dynasty of Germany which he claimed was the enemy of all European workers. Mussolini and other nationalists warned the Italian government that Italy must join the war or face revolution and called for violence against pacifists and neutralists.
With nationalist sentiment firmly on the side of reclaiming Italian territories of Austria-Hungary, Italy entered negotiations with the
Triple Entente
The Triple Entente (from French meaning "friendship, understanding, agreement") describes the informal understanding between the Russian Empire, the French Third Republic, and the United Kingdom of Great Britain and Ireland. It was built upon th ...
. The negotiations ended successfully in April 1915 when the
London Pact was brokered with the Italian government. The pact ensured Italy the right to attain all Italian-populated lands it wanted from Austria-Hungary, as well as concessions in the
Balkan Peninsula
The Balkans ( , ), corresponding partially with the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throug ...
and suitable compensation for any territory gained by the United Kingdom and France from Germany in Africa.
The proposal fulfilled the desires of Italian nationalists and Italian imperialism and was agreed to. Italy joined the Triple Entente in its war against Austria-Hungary.
The reaction in Italy was divided: former prime minister
Giovanni Giolitti
Giovanni Giolitti (; 27 October 1842 – 17 July 1928) was an Italian statesman. He was the prime minister of Italy five times between 1892 and 1921. He is the longest-serving democratically elected prime minister in Italian history, and the sec ...
was furious over Italy's decision to go to war against its former allies, Germany and Austria-Hungary. Giolitti claimed that Italy would fail in the war, predicting high numbers of mutinies, Austro-Hungarian occupation of even more Italian territory and that the failure would produce a catastrophic rebellion that would destroy the liberal-democratic monarchy and the liberal-democratic secular institutions of the state.
Freemasonry
Freemasonry (sometimes spelled Free-Masonry) consists of fraternal groups that trace their origins to the medieval guilds of stonemasons. Freemasonry is the oldest secular fraternity in the world and among the oldest still-existing organizati ...
was an influential semi-secret force in Italian politics with a strong presence among professionals and the middle class across Italy, as well as among the leadership in parliament, public administration, and the army. The two main organization were the Grand Orient and the Grand Lodge of Italy. They had 25,000 members in 500 or more lodges. Freemasons took on the challenge of mobilizing the press, public opinion, and the leading political parties in support of Italy's joining the war as an ally of France and Great Britain. In 1914-15 they temporarily dropped their traditional pacifistic rhetoric and adopted the objectives of the nationalists. Freemasonry had historically promoted cosmopolitan universal values, and by 1917 onwards they reverted to their internationalist stance and pressed for the creation of a
League of Nations
The League of Nations (LN or LoN; , SdN) was the first worldwide intergovernmental organisation whose principal mission was to maintain world peace. It was founded on 10 January 1920 by the Paris Peace Conference (1919–1920), Paris Peace ...
to promote a new post-war universal order based upon the peaceful coexistence of independent and democratic nations.
Drivers of Serbian policy
The principal aims of Serbian policy were to consolidate the Russian-backed expansion of Serbia in the Balkan Wars and to achieve dreams of a
Greater Serbia
The term Greater Serbia or Great Serbia () describes the Serbian nationalist and irredentist ideology of the creation of a Serb state which would incorporate all regions of traditional significance to Serbs, a South Slavic ethnic group, inclu ...
, which included the unification of lands with large ethnic Serb populations in Austria-Hungary, including Bosnia.
[Clark, Christopher (2013). ''The Sleepwalkers: How Europe Went to War in 1914''. HarperCollins. ., p.22] One important factor was the idea that Serbia was to be the "Piedmont of the Balkans", the core land that would unite all South Slavs into a single state, just like
Piedmont–Sardinia had done during the
Italian Risorgimento. However, the unexpected emergence of an independent
Principality of Bulgaria
The Principality of Bulgaria () was a vassal state under the suzerainty of the Ottoman Empire. It was established by the Treaty of Berlin in 1878.
After the Russo-Turkish War ended with a Russian victory, the Treaty of San Stefano was signed ...
in 1878 challenged Serbia's monopoly on
Yugoslavism
Yugoslavism, Yugoslavdom, or Yugoslav nationalism is an ideology supporting the notion that the South Slavs, namely the Bosniaks, Bulgarians, Croats, Macedonians (ethnic group), Macedonians, Montenegrins, Serbs and Slovenes belong to a single ...
, and a fierce regional competition with the Bulgarians began.
Serbian–Bulgarian rivalry between 1878 and 1914 caused several wars between what were ironically supposedly South Slavic "brethren".
After Bulgaria incorporated
Eastern Rumelia
Eastern Rumelia (; ; ) was an autonomous province (''oblast'' in Bulgarian, ''vilayet'' in Turkish) of the Ottoman Empire with a total area of , which was created in 1878 by virtue of the Treaty of Berlin (1878), Treaty of Berlin and ''de facto'' ...
in 1995, king
Milan I of Serbia feared that Bulgaria would annex Macedonia, and decided to wage the
Serbo-Bulgarian War (1885) to prevent it, although the Serbs suffered a great defeat.
Inside Serbia, there was a strong sense of a loss of opportunity in the southeastern Balkans, and there were fears that Belgrade might forever lose its chances of uniting the Western Balkans as well, as Austria-Hungary already incorporated the later territories of Slovenia and Croatia, first occupied Bosnia and Herzegovina in 1878, and then annexed them as a crown land in 1908.
Underlying that was a culture of extreme nationalism and a cult of assassination, which romanticized the slaying of the Ottoman Sultan
Murad I
Murad I (; ), nicknamed ''Hüdavendigâr'' (from – meaning "Head of state, sovereign" in this context; 29 June 1326 – 15 June 1389) was the sultan of the Ottoman Empire from 1362 to 1389. He was the son of Orhan Gazi and Nilüfer Hatun. Mura ...
as the heroic epilogue to the otherwise-disastrous
Battle of Kosovo
The Battle of Kosovo took place on 15 June 1389 between an army led by the Serbian Prince Lazar Hrebeljanović and an invading army of the Ottoman Empire under the command of Sultan Murad I. It was one of the largest battles of the Late Middl ...
on 28 June 1389. Clark states: "The Greater Serbian vision was not just a question of government policy, however, or even of propaganda. It was woven deeply into the
culture
Culture ( ) is a concept that encompasses the social behavior, institutions, and Social norm, norms found in human societies, as well as the knowledge, beliefs, arts, laws, Social norm, customs, capabilities, Attitude (psychology), attitudes ...
and
identity of the Serbs."
Famed
Serbian-American scientist
Michael Pupin, for example, in July 1914 explicitly connected the Battle of Kosovo ("a natural heritage of every true Serb") to Franz Ferdinand's assassination. He wrote that the battle's "memory always served as a reminder to the Serbs that they must avenge the wrongs perpetrated upon their race".
Serbian policy was complicated by the fact that the main actors in 1914 were both the official Serb government, led by
Nikola Pašić
Nikola Pašić ( sr-Cyrl, Никола Пашић, ; 18 December 1845 – 10 December 1926) was a Serbian and Yugoslav politician and diplomat. During his political career, which spanned almost five decades, he served five times as prime minis ...
, and the "Black Hand" terrorists, led by the head of Serb military intelligence, known as Apis. The Black Hand believed that a Greater Serbia would be achieved by provoking a war with Austria-Hungary by an act of terror. The war would be won with Russian backing.
The official government position was to focus on consolidating the gains made during the exhausting Balkan War and to avoid further conflicts. That official policy was temporized by the political necessity of simultaneously and clandestinely supporting dreams of a Greater Serbian state in the long term. The Serbian government found it impossible to put an end to the machinations of the Black Hand for fear it would itself be overthrown. Clark states: "Serbian authorities were partly unwilling and partly unable to suppress the irredentist activity that had given rise to the assassinations in the first place".
Russia tended to support Serbia as a fellow Slavic state, considered Serbia its "client," and encouraged Serbia to focus its irredentism against Austria-Hungary because it would discourage conflict between Serbia and Bulgaria, another prospective Russian ally, in
Macedonia
Macedonia (, , , ), most commonly refers to:
* North Macedonia, a country in southeastern Europe, known until 2019 as the Republic of Macedonia
* Macedonia (ancient kingdom), a kingdom in Greek antiquity
* Macedonia (Greece), a former administr ...
.
Imperialism
Global clusure
The global space for imperial expansion ended c. 1900. All contemporary empires reached their
last frontier. Later, the event was called "global closure."
Writing in the late 19th century,
Kang Youwei
Kang Youwei (; Cantonese: ''Hōng Yáuh-wàih''; 19March 185831March 1927) was a political thinker and reformer in China of the late Qing dynasty. His increasing closeness to and influence over the young Guangxu Emperor sparked confli ...
,
Josiah Strong and George
Vacher de Lapouge stressed that imperial expansion cannot indefinitely proceed on the definite surface of the globe and therefore empires are soon destined to clash for the world domination. The more nations become conscious of global spatial relations, wrote another contemporary
Friedrich Ratzel
Friedrich Ratzel (August 30, 1844 – August 9, 1904) was a German geographer and ethnographer, notable for first using the term ''Lebensraum'' ("living space") in the sense that the National Socialists later would.
Life
Ratzel's father was th ...
, the more they engage in the struggle for space, and "in a narrow space the struggle becomes desperate." Their predictions came true and the main remaining puzzle is why what they knew in their days remains
debated in our days.
After World Wars became accomplished facts, many scholars offered similar explanations.
Edward Carr causally linked the end of the overseas outlet for imperial expansion and World Wars. In the 19th century, he wrote during the Second World War, imperialist wars were waged against "primitive" peoples. "It was silly for European countries to fight against one another when they could still ... maintain social cohesion by continuous expansion in Asia and Africa. Since 1900, however, this has no longer been possible: "the situation has radically changed". Now wars are between "imperial powers."
''
The Anatomy of Peace'' (1945) of Emery Reves argues that the era of outward expansion is forever closed and the historic trend of expansion resulted in direct collision between the remaining powers.
[Reves 1945: pp 267-268.] In another 1945 book, ''The Precarious Balance'', on four centuries of the European power struggle,
Ludwig Dehio explained the durability of the European states system by its overseas expansion: "Overseas expansion and the system of states were born at the same time; the vitality that burst the bounds of the Western world also destroyed its unity." In a similar thesis, the overseas world provided European empires with an enormous outlet and thus prevented Europe from unifying into a single European empire. The European powers turned their exceeding energies outward and the internal European
power was balanced. Correspondingly, when the space for expansion ended, these powers became destined for head-on collisions.
Hans Morgenthau
Hans Joachim Morgenthau (February 17, 1904 – July 19, 1980) was a German-American jurist and political scientist who was one of the major 20th-century figures in the study of international relations. Morgenthau's works belong to the tradition ...
wrote that the imperial expansion into relatively empty periphery of the Earth in the 18th and 19th centuries deflected great power politics, thereby reducing conflict. But by the late 19th century, the consolidation of the great nation-states and empires of the West was consummated, and territorial gains could only be made at the expense of one another.
John H. Herz outlined one "chief function" of the overseas expansion and the impact of its end:
Michael Heffernan summarized the view:
The prevalence of basic historical forces over human agency is reflected in memoirs of those who waged World War I and is named the one thing all of them agree. Nations, Churchill associated, acted as "planetary bodies" drawing "each other into due collision" with diplomacy helpless to prevent Cosmos from plunging into Chaos. With their nations slithering "over the brink into the boiling cauldron of war," in the words of
David Lloyd George
David Lloyd George, 1st Earl Lloyd-George of Dwyfor (17 January 1863 – 26 March 1945) was Prime Minister of the United Kingdom from 1916 to 1922. A Liberal Party (United Kingdom), Liberal Party politician from Wales, he was known for leadi ...
, statesmen felt "standing on a planet that had been suddenly wrenched from its orbit and was spinning wildly into the unknown." Lloyd George described the waiting on August 4, 1914 for the hour of the ultimatum to Germany as "Britain's most fateful hour since she arose out of the deep." "Boom!" was Big Ben's signal to "hurl millions to their doom." The big clock echoed like the "hummer of destiny": "Doom! Doom! Doom!"
Impact of colonial rivalry and aggression on the pre-1914 Europe

Imperial rivalry and the consequences of the search for imperial security or for imperial expansion had important consequences for the origins of World War I. In view of
Richard Overy
Richard James Overy (born 23 December 1947) is a British historian who has published on the history of World War II and Nazi Germany. In 2007, as ''The Times'' editor of ''Complete History of the World'', he chose the 50 key dates of world his ...
, the origins of both World Wars can only be understood through the prism of the
fresh drive to empire since the 1870s.
Imperial rivalries between France, Britain, Russia and Germany played an important part in the creation of the Triple Entente and the relative isolation of Germany. Imperial opportunism, in the form of the Italian attack on Ottoman Libyan provinces, also encouraged the Balkan wars of 1912–13, which changed the balance of power in the Balkans to the detriment of Austria-Hungary.
Some historians, such as
Margaret MacMillan
Margaret Olwen MacMillan (born 23 December 1943) is a Canadian historian and professor at the University of Oxford. She is former provost of Trinity College, Toronto, and professor of history at the University of Toronto and previously at Ryers ...
, believe that Germany created its own diplomatic isolation in Europe, in part by an aggressive and pointless imperial policy known as
Weltpolitik
''Weltpolitik'' (, "world politics") was the imperialist foreign policy adopted by the German Empire during the reign of Emperor Wilhelm II. The aim of the policy was to transform Germany into a global power. Though considered a logical consequ ...
. Others, such as Clark, believe that German isolation was the unintended consequence of a détente between Britain, France, and Russia. The détente was driven by Britain's desire for imperial security in relation to France in North Africa and to Russia in Persia and India.
Either way, the isolation was important because it left Germany few options but to ally itself more strongly with Austria-Hungary, leading ultimately to unconditional support for Austria-Hungary's punitive war on Serbia during the July Crisis.
German isolation: The potential consequences of Weltpolitik
Otto von Bismarck
Otto, Prince of Bismarck, Count of Bismarck-Schönhausen, Duke of Lauenburg (; born ''Otto Eduard Leopold von Bismarck''; 1 April 1815 – 30 July 1898) was a German statesman and diplomat who oversaw the unification of Germany and served as ...
disliked the idea of an overseas empire but supported
France's colonization in Africa because it diverted the French government, attention, and resources away from
Continental Europe
Continental Europe or mainland Europe is the contiguous mainland of Europe, excluding its surrounding islands. It can also be referred to ambiguously as the European continent, – which can conversely mean the whole of Europe – and, by som ...
and revanchism after 1870. Germany's "New Course" in foreign affairs, ''Weltpolitik'' ("world policy"), was adopted in the 1890s after Bismarck's dismissal.
Its aim was ostensibly to transform Germany into a global power through assertive diplomacy, the acquisition of overseas colonies, and the development of a large navy.
Some historians, notably MacMillan and
Hew Strachan, believe that a consequence of the policy of ''Weltpolitik'' and Germany's associated assertiveness was to isolate it. ''Weltpolitik'', particularly as expressed in Germany's objections to France's growing influence in Morocco in 1904 and 1907, also helped cement the Triple Entente. The Anglo-German naval race also isolated Germany by reinforcing Britain's preference for agreements with Germany's continental rivals: France and Russia.
German isolation: The potential consequences of the Triple Entente
Historians like Ferguson and Clark believe that Germany's isolation was the unintended consequences of the need for Britain to defend its empire against threats from France and Russia. They also downplay the impact of ''Weltpolitik'' and the Anglo-German naval race, which ended in 1911.
Britain and France signed a series of agreements in 1904, which became known as the
Entente Cordiale
The Entente Cordiale (; ) comprised a series of agreements signed on 8 April 1904 between the United Kingdom of Great Britain and Ireland, United Kingdom and the French Third Republic, French Republic which saw a significant improvement in Fr ...
. Most importantly, it granted freedom of action to Britain in Egypt and to France in Morocco. Equally, the 1907
Anglo-Russian Convention
The Anglo-Russian Convention of 1907 (), or Convention between the United Kingdom and Russia relating to Persia, Afghanistan, and Tibet (; ), was signed on August 31, 1907, in Saint Petersburg. It ended the two powers' longstanding rivalry in Cen ...
greatly improved British–Russian relations by solidifying boundaries that identified respective control in Persia, Afghanistan, and Tibet.
The alignment between Britain, France, and Russia became known as the Triple Entente. However, the Triple Entente was not conceived as a counterweight to the Triple Alliance but as a formula to secure imperial security among the three powers. The impact of the Triple Entente was twofold: improving British relations with France and its ally, Russia, and showing the importance to Britain of good relations with Germany. Clark states it was "not that antagonism toward Germany caused its isolation, but rather that the new system itself channeled and intensified hostility towards the German Empire."
Imperial opportunism
The Italo-Turkish War of 1911–1912 was fought between the Ottoman Empire and the Kingdom of Italy in North Africa. The war made it clear that no great power still appeared to wish to support the Ottoman Empire, which paved the way for the Balkan Wars.
The status of Morocco had been guaranteed by international agreement, and when France attempted a great expansion of its influence there without the assent of all other signatories, Germany opposed and prompted the Moroccan Crises: the Tangier Crisis of 1905 and the Agadir Crisis of 1911. The intent of German policy was to drive a wedge between the British and French, but in both cases, it produced the opposite effect and Germany was isolated diplomatically, most notably by lacking the support of Italy despite it being in the Triple Alliance. The French protectorate over Morocco was established officially in 1912.
In 1914, however, the African scene was peaceful. The continent was almost fully divided up by the imperial powers, with only Liberia and Ethiopia still independent. There were no major disputes there pitting any two European powers against each other.
Role of businesses and financial institutions
Lenin's interpretation
Marxism
Marxism is a political philosophy and method of socioeconomic analysis. It uses a dialectical and materialist interpretation of historical development, better known as historical materialism, to analyse class relations, social conflict, ...
attributes war to economic interests and rivalries, in this case, imperialism.
Vladimir Lenin
Vladimir Ilyich Ulyanov ( 187021 January 1924), better known as Vladimir Lenin, was a Russian revolutionary, politician and political theorist. He was the first head of government of Soviet Russia from 1917 until Death and state funeral of ...
argued that "imperialism is the monopoly stage of capitalism," which emerges from the "free competition" stage of capitalism and is characterized by the presence of "five basic features":
"(1) the concentration of production and capital has developed to such a high stage that it has created monopolies which play a decisive role in economic life; (2) the merging of bank capital with industrial capital, and the creation, on the basis of this 'finance capital,' of a financial oligarchy; (3) the export of capital as distinguished from the export of commodities acquires exceptional importance; (4) the formation of international monopolist capitalist associations which share the world among themselves and (5) the territorial division of the whole world among the biggest capitalist powers is completed."
Lenin concluded that these five features of imperialism had been established by the turn of the 20th century, after the great powers had spent the final decades of the prior century acquiring nearly all the remaining territory of the world that had not yet been colonized.
The largest and most lucrative uncolonized or semi-colonized territories at the time of the war were that of Persia (Iran), Turkey (including all of the pre-industrial territories of the declining Ottoman Empire), and most of China beyond
the treaty ports.
Having completed the division of the world among themselves at the beginning of the century, the developed capitalist states would thereafter compete for hegemony in the form of a ''redivision'' of those territories, both in the industrialized areas (e.g., "German appetite for Belgium; French appetite for Lorraine"), and in primarily agrarian areas.
Other views
Richard Hamilton observed that the argument went that since industrialists and bankers were seeking
raw material
A raw material, also known as a feedstock, unprocessed material, or primary commodity, is a basic material that is used to produce goods, finished goods, energy, or intermediate materials/Intermediate goods that are feedstock for future finished ...
s, new markets and new investments overseas, if one was strategically blocked by other powers, the "obvious" or "necessary" solution was war. Hamilton somewhat criticized the view that the war was launched to secure
colonies
A colony is a territory subject to a form of foreign rule, which rules the territory and its indigenous peoples separated from the foreign rulers, the colonizer, and their '' metropole'' (or "mother country"). This separated rule was often or ...
, but agreed that imperialism may have been on the mind of key decision makers. He argued that it was not necessarily for logical, economic reasons. Hamilton noted that Bismarck was famously not moved by such
peer pressure
Peer pressure is a direct or indirect influence on peers, i.e., members of social groups with similar interests and experiences, or social statuses. Members of a peer group are more likely to influence a person's beliefs, values, religion and beh ...
and ended Germany's limited imperialist movement. He regarded colonial ambitions as a waste of money but simultaneously recommended them to other nations.
While some bankers and industrialists tried to curb Wilhelm II away from war, their efforts ended in failure. There is no evidence they ever received a direct response from the Kaiser, chancellor, or foreign secretary or that their advice was discussed in depth by the Foreign Office or the General Staff. The German leadership measured power not in financial ledgers but land and military might.
Hamilton argued that, generally speaking, the European business leaders were in favour of profits and peace allowed for stability and investment opportunities across national borders, but war brought the disruption trade, the confiscation of holdings, and the risk of increased taxation. While arms manufacturers could make money selling weapons at home, they could also lose access to foreign markets.
Krupp
Friedrich Krupp AG Hoesch-Krupp (formerly Fried. Krupp AG and Friedrich Krupp GmbH), trade name, trading as Krupp, was the largest company in Europe at the beginning of the 20th century as well as Germany's premier weapons manufacturer dur ...
, a major arms manufacturer, started the war with 48 million marks in profits but ended it 148 million marks in debt, and the first year of peace saw further losses of 36 million marks.
William Mulligan argues that while economic and political factors were often interdependent, economic factors tended towards peace. Prewar trade wars and financial rivalries never threatened to escalate into conflict. Governments would mobilise bankers and financiers to serve their interests, rather than the reverse. The commercial and financial elite recognized peace as necessary for economic development and used its influence to resolve diplomatic crises. Economic rivalries existed but were framed largely by political concerns. Prior to the war, there were few signs that the international economy stood for war in the summer of 1914.
Social Darwinism
Social Darwinism
Charles Darwin, after whom social Darwinism is named
Social Darwinism is a body of pseudoscientific theories and societal practices that purport to apply biological concepts of natural selection and survival of the fittest to sociology, economi ...
was a theory of
human evolution
''Homo sapiens'' is a distinct species of the hominid family of primates, which also includes all the great apes. Over their evolutionary history, humans gradually developed traits such as Human skeletal changes due to bipedalism, bipedalism, de ...
loosely based on
Darwinism
''Darwinism'' is a term used to describe a theory of biological evolution developed by the English naturalist Charles Darwin (1809–1882) and others. The theory states that all species of organisms arise and develop through the natural sel ...
that influenced many European intellectuals and strategic thinkers from 1870 to 1914. It emphasised that struggle between
nation
A nation is a type of social organization where a collective Identity (social science), identity, a national identity, has emerged from a combination of shared features across a given population, such as language, history, ethnicity, culture, t ...
s and races was natural and that only the
fittest nations deserved to survive. It gave an impetus to German assertiveness as a world economic and military power, aimed at competing with France and Britain for world power.
German colonial rule in Africa in 1884 to 1914 was an expression of
nationalism
Nationalism is an idea or movement that holds that the nation should be congruent with the state. As a movement, it presupposes the existence and tends to promote the interests of a particular nation, Smith, Anthony. ''Nationalism: Theory, I ...
and moral superiority, which was justified by constructing an image of the natives as "Other." The approach highlighted racist views of mankind. German colonization was characterized by the use of repressive violence in the name of "culture" and "civilisation." Germany's cultural-missionary project boasted that its colonial programmes were humanitarian and educational endeavours. Furthermore, the wide acceptance of Social Darwinism by intellectuals justified Germany's right to acquire colonial territories as a matter of the "survival of the fittest," according to the historian Michael Schubert.
The model suggested an explanation of why some ethnic groups, then called "races," had been for so long antagonistic, such as
Germans
Germans (, ) are the natives or inhabitants of Germany, or sometimes more broadly any people who are of German descent or native speakers of the German language. The Basic Law for the Federal Republic of Germany, constitution of Germany, imple ...
and
Slavs
The Slavs or Slavic people are groups of people who speak Slavic languages. Slavs are geographically distributed throughout the northern parts of Eurasia; they predominantly inhabit Central Europe, Eastern Europe, Southeastern Europe, and ...
. They were natural rivals, destined to clash. Senior German generals like
Helmuth von Moltke the Younger talked in apocalyptic terms about the need for Germans to fight for their existence as a people and culture. MacMillan states: "Reflecting the Social Darwinist theories of the era, many Germans saw Slavs, especially Russia, as the natural opponent of the Teutonic races."
[MacMillan, Margaret (2013). The War That Ended Peace: The Road to 1914. Random House. . p524] Also, the chief of the Austro-Hungarian General Staff declared: "A people that lays down its weapons seals its fate."
In July 1914, the Austrian press described Serbia and the South Slavs in terms that owed much to Social Darwinism.
In 1914, the German economist
Johann Plenge described the war as a clash between the German "ideas of 1914" (duty, order, justice) and the French "ideas of 1789" (
liberty, equality, fraternity). William Mulligen argues that Anglo-German antagonism was also about a clash of two political cultures as well as more traditional geopolitical and military concerns. Britain admired Germany for its economic successes and social welfare provision but also regarded Germany as illiberal, militaristic, and technocratic.
War was seen as a natural and viable or even useful instrument of policy. "War was compared to a tonic for a sick patient or a life-saving operation to cut out diseased flesh."
Since war was natural for some leaders, it was simply a question of timing and so it would be better to have a war when the circumstances were most propitious. "I consider a war inevitable," declared Moltke in 1912. "The sooner the better." In German ruling circles, war was viewed as the only way to rejuvenate Germany. Russia was viewed as growing stronger every day, and it was believed that Germany had to strike while it still could before it was crushed by Russia.
Nationalism made war a competition between peoples, nations or races, rather than kings and elites. Social Darwinism carried a sense of inevitability to conflict and downplayed the use of diplomacy or international agreements to end warfare. It tended to glorify warfare, the taking of initiative, and the warrior male role.
Social Darwinism played an important role across Europe, but J. Leslie has argued that it played a critical and immediate role in the strategic thinking of some important
hawkish members of the Austro-Hungarian government. Social Darwinism, therefore, normalized war as an instrument of policy and justified its use.
Arms race
By the 1870s to 1880s, all the major powers were preparing for a large-scale war - although none expected one. Britain neglected its small army but focused on building up the Royal Navy, which was already stronger than the next two largest navies combined. Germany, France, Austria, Italy, Russia, and some smaller countries set up
conscription
Conscription, also known as the draft in the United States and Israel, is the practice in which the compulsory enlistment in a national service, mainly a military service, is enforced by law. Conscription dates back to antiquity and it conti ...
systems in which young men would serve from one to three years in the army and then spend the next twenty years or so in the reserves, with annual summer training. Men with higher social status became officers. Each country devised a mobilization system to call up reserves quickly and send them to key points by rail.
Every year,
general staff
A military staff or general staff (also referred to as army staff, navy staff, or air staff within the individual services) is a group of officers, Enlisted rank, enlisted, and civilian staff who serve the commanding officer, commander of a ...
s updated and expanded their plans in terms of complexity. Each country stockpiled arms and supplies for an army that ran into the millions. Germany in 1874 had a regular professional army of 420,000 with an additional 1.3 million reserves. By 1897, the regular army was 545,000 strong and the reserves 3.4 million. The French in 1897 had 3.4 million reservists, Austria 2.6 million, and Russia 4.0 million. The size of military manpower increased: conscription-law changes in France in 1913, for example, boosted numbers in the French military on the eve of conflict.
The various national war-plans had been perfected by 1914, but with Russia and Austria trailing in effectiveness. Recent wars since 1865 had typically been short: a matter of months. All war-plans called for a decisive opening and assumed victory would come after a short war. None planned for the food and munitions needs of the long stalemate that actually unfolded from 1914 to 1918.
As
David Stevenson puts it, "A self-reinforcing cycle of heightened military preparedness... was an essential element in the conjuncture that led to disaster.... The armaments race... was a necessary precondition for the outbreak of hostilities." David Herrmann goes further by arguing that the fear that "windows of opportunity for victorious wars" were closing, meaning that "the arms race did precipitate the First World War". If the assassination of Franz Ferdinand had occurred in 1904 or even in 1911, Herrmann speculates, there might have been no war. It was "the armaments race and the speculation about imminent or preventive wars" that made his death in 1914 the trigger for war.
One of the aims of the
First Hague Conference of 1899, held at the suggestion of Emperor
Nicholas II of Russia, was to discuss disarmament. The
Second Hague Conference took place in 1907. All signatories except for Germany supported disarmament. Germany also did not want to agree to binding arbitration and mediation. The Kaiser was concerned that the United States would propose disarmament measures, which he opposed. All parties tried to revise international law to their own advantage.
Anglo-German naval race

Historians have debated the role of the German naval buildup as the principal cause of deteriorating Anglo-German relations. In any case, Germany never came close to catching up with Britain.
Supported by
Wilhelm II
Wilhelm II (Friedrich Wilhelm Viktor Albert; 27 January 18594 June 1941) was the last German Emperor and King of Prussia from 1888 until Abdication of Wilhelm II, his abdication in 1918, which marked the end of the German Empire as well as th ...
's enthusiasm for an expanded
German navy
The German Navy (, ) is part of the unified (Federal Defense), the German Armed Forces. The German Navy was originally known as the ''Bundesmarine'' (Federal Navy) from 1956 to 1995, when ''Deutsche Marine'' (German Navy) became the official ...
, Grand Admiral
Alfred von Tirpitz
Alfred Peter Friedrich von Tirpitz (; born Alfred Peter Friedrich Tirpitz; 19 March 1849 – 6 March 1930) was a German grand admiral and State Secretary of the German Imperial Naval Office, the powerful administrative branch of the German Imperi ...
championed four
Fleet Acts from 1898 to 1912. From 1902 to 1910, Britain's Royal Navy embarked on its own massive expansion to keep ahead of the Germans. The competition came to focus on the revolutionary new ships based on the design of
''Dreadnought'', which was launched in 1906 and gave Britain a battleship that far outclassed any other in Europe.
The overwhelming British response proved to Germany that its efforts were unlikely ever to equal those of the Royal Navy. In 1900, the British had a 3.7:1 tonnage advantage over Germany; in 1910, the ratio was 2.3:1 and in 1914, it reached 2.1:1. Ferguson argues: "So decisive was the British victory in the naval arms race that it is hard to regard it as in any meaningful sense a cause of the First World War." However, the had narrowed the gap by nearly half and that the Royal Navy had had a
long-standing policy of surpassing any two potential opponents combined. The
US Navy
The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
was in a period of growth, which made the German gains seem very ominous in London.
In Britain in 1913, there was intense internal debate about new ships because of the growing influence of Admiral
John Fisher
John Fisher (c. 19 October 1469 – 22 June 1535) was an English Catholic prelate who served as Bishop of Rochester from 1504 to 1535 and as chancellor of the University of Cambridge. He is honoured as a martyr and saint by the Catholic Chu ...
's ideas and increasing financial constraints. In 1914, Germany adopted a policy of building submarines, instead of new dreadnoughts and destroyers, effectively abandoning the naval arms-race, but Berlin kept the new policy secret to delay other powers from following suit.
Russian interests in the Balkans and the Ottoman Empire
Major Russian goals included strengthening Saint Petersburg's role as the protector of Eastern Christians in the Balkans, such as in Serbia. Although Russia enjoyed a booming economy, growing population, and large armed forces, its strategic position was threatened by an expanding Ottoman military - trained by German experts and using the latest technology. The start of the war re-focussed attention on old Russian goals: expelling the Ottomans from Constantinople, extending Russian dominion into eastern Anatolia and Persian Azerbaijan, and annexing Galicia. Conquest of the
Straits
A strait is a water body connecting two seas or water basins. The surface water is, for the most part, at the same elevation on both sides and flows through the strait in both directions, even though the topography generally constricts the ...
would have assured Russian predominance in the Black Sea and Russian access to the Mediterranean.
Technical and military factors
Short-war illusion
Traditional narratives of the war suggested that when the war began, both sides believed that the war would end quickly. Rhetorically speaking, there was an expectation that the war would be "over by Christmas" in 1914. That is important for the origins of the conflict since it suggests that since it was expected that the war would be short, statesmen tended not to take gravity of military action as seriously as they might have done otherwise. Modern historians suggest a nuanced approach. There is ample evidence to suggest that statesmen and military leaders thought the war would be lengthy and terrible and have profound political consequences.
While it is true all military leaders planned for a swift victory, many military and civilian leaders recognized that the war might be long and highly destructive. The principal German and French military leaders, including Moltke, Ludendorff, and Joffre, expected a long war. British Secretary of State for War
Lord Kitchener expected a long war: "three years" or longer, he told an amazed colleague.
Moltke hoped that if a European war broke out, it would be resolved swiftly, but he also conceded that it might drag on for years, wreaking immeasurable ruin. Asquith wrote of the approach of "Armageddon" and French and Russian generals spoke of a "war of extermination" and the "end of civilization." British Foreign Secretary Edward Grey famously stated just hours before Britain declared war, "The lamps are going out all over Europe, we shall not see them lit again in our lifetime."
Clark concluded, "In the minds of many statesmen, the hope for a short war and the fear of a long one seemed to have cancelled each other out, holding at bay a fuller appreciation of the risks."
Primacy of offensive and war by timetable
Moltke, Joffre, Conrad, and other military commanders held that seizing the initiative was extremely important. That theory encouraged all belligerents to devise war plans to strike first to gain the advantage. The war plans all included complex plans for mobilization of the armed forces, either as a prelude to war or as a deterrent. The continental Great Powers' mobilization plans included arming and transporting millions of men and their equipment, typically by rail and to strict schedules.
The mobilization plans limited the scope of diplomacy, as military planners wanted to begin mobilisation as quickly as possible to avoid being caught on the defensive. They also put pressure on policymakers to begin their own mobilization once it was discovered that other nations had begun to mobilize.
In 1969,
A. J. P. Taylor
Alan John Percivale Taylor (25 March 1906 – 7 September 1990) was an English historian who specialised in 19th- and 20th-century European diplomacy. Both a journalist and a broadcaster, he became well known to millions through his telev ...
wrote that mobilization schedules were so rigid that once they were begun, they could not be canceled without massive disruption of the country and military disorganisation, and they could not proceed without physical invasion (of Belgium by Germany). Thus, diplomatic overtures conducted after the mobilizations had begun were ignored. Hence the metaphor "war by timetable."
Russia ordered a partial mobilization on 25 July against Austria-Hungary only. Their lack of prewar planning for the partial mobilization made the Russians realize by 29 July that it would be impossible to interfere with a general mobilization.
Only a general mobilization could be carried out successfully. The Russians were, therefore, faced with only two options: canceling the mobilization during a crisis or moving to full mobilization, the latter of which they did on 30 July. They, therefore, mobilized along both the Russian border with Austria-Hungary and the border with Germany.
German mobilization plans assumed a two-front war against France and Russia and had the bulk of the German army massed against France and taking the offensive in the west, and a smaller force holding East Prussia. The plans were based on the assumption that France would mobilize significantly faster than Russia.
On 28 July, Germany learned through its spy network that Russia had implemented partial mobilisation and its "Period Preparatory to War." The Germans assumed that Russia had decided upon war and that its mobilisation put Germany in danger, especially since because German war plans, the so-called Schlieffen Plan, relied upon Germany to mobilise speedily enough to defeat France first by attacking largely through neutral Belgium before it turned to defeat the slower-moving Russians.
Christopher Clark states: "German efforts at mediation – which suggested that Austria should 'Halt in Belgrade' and use the occupation of the Serbian capital to ensure its terms were met – were rendered futile by the speed of Russian preparations, which threatened to force the Germans to take counter-measures before mediation could begin to take effect."
Clark also states: "The Germans declared war on Russia before the Russians declared war on Germany. But by the time that happened, the Russian government had been moving troops and equipment to the German front for a week. The Russians were the first great power to issue an order of general mobilisation and the first Russo-German clash took place on German, not on Russian soil, following the Russian invasion of East Prussia. That doesn't mean that the Russians should be 'blamed' for the outbreak of war. Rather it alerts us to the complexity of the events that brought war about and the limitations of any thesis that focuses on the culpability of one actor."
Historiography

Immediately after the end of hostilities, Anglo-American historians argued that Germany was solely responsible for the start of the war. However, academic work in the English-speaking world in the late 1920s and the 1930s blamed the participants more equally. Meanwhile German academics also challenged the claim that Germany was solely or primarily to blame.
In the 1960s the German historian
Fritz Fischer challenged prevailing German academic opinion by arguing that Germany's conservative leaders had deliberately sought war. This in turn unleashed an intense worldwide debate on Imperial Germany's long-term goals. The American historian
Paul Schroeder
Paul W. Schroeder (February 23, 1927''International Who's Who 2000'', Vol. 63 (Europa, 1999: ), p. 1391. – December 6, 2020) was an American historian who was professor emeritus at the University of Illinois. He specialized in European interna ...
agrees with the critics that Fisher exaggerated and misinterpreted many points. However, Schroeder endorses Fisher's basic conclusion:
However, Schroeder argues that all of that was not the main cause of the war in 1914. Indeed, the search for a single main cause is not a helpful approach to history. Instead, there are multiple causes any one or two of which could have launched the war. He argues, "The fact that so many plausible explanations for the outbreak of the war have been advanced over the years indicates on the one hand that it was massively overdetermined, and on the other that no effort to analyze the causal factors involved can ever fully succeed."
Debate over the country that "started" the war and who bears the blame still continues. According to
Annika Mombauer, a new consensus among scholars had emerged by the 1980s, mainly as a result of Fischer's intervention:
On historians inside Germany, she adds, "There was 'a far-reaching consensus about the special responsibility of the German Reich' in the writings of leading historians, though they differed in how they weighted Germany's role."
See also
*
Causes of World War II
The causes of World War II have been given considerable attention by historians. The immediate precipitating event was the invasion of Poland by Nazi Germany on September 1, 1939, and the subsequent declarations of war on Germany made by Unit ...
*
Diplomatic history of World War I
The diplomatic history of World War I covers the non-military interactions among the major players during World War I. For the domestic histories of participants see home front during World War I. For a longer-term perspective see international re ...
**
American entry into World War I
The United States entered into World War I on 6 April 1917, more than two and a half years after the war began in Europe. Apart from an Anglophile element urging early support for the United Kingdom of Great Britain and Ireland, British and an a ...
**
Austro-Hungarian entry into World War I
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British entry into World War I
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French entry into World War I
France entered World War I when Germany declared war on 3 August 1914.
World War I largely arose from a conflict between two alliances: the Triple Alliance (Germany, Austria-Hungary, and Italy) and the Triple Entente (France, Russia, and Britain ...
**
German entry into World War I
**
Italian entry into World War I
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Japanese entry into World War I
**
Ottoman entry into World War I
The Ottoman Empire's entry into World War I began on 29 October 1914 when two recently purchased ships of its navy, which were still crewed by German Empire, German sailors and commanded by their German admiral, carried out the Black Sea Raid, a ...
**
Russian entry into World War I
The Russian Empire's entry into World War I unfolded gradually in the days leading up to July 28, 1914. The sequence of events began with Austria-Hungary's declaration of war on Kingdom of Serbia, Serbia, a Russian ally. In response, Russia iss ...
*
History of the Balkans
The Balkans, partly corresponding with the Balkan Peninsula, encompasses areas that may also be placed in Southeastern, Southern, Central and Eastern Europe. The distinct identity and fragmentation of the Balkans owes much to its often turbulen ...
*
Historiography of the causes of World War I
*
International relations (1814–1919)
This article covers worldwide diplomacy and, more generally, the international relations of the great powers from 1814 to 1919. This era covers the period from the end of the Napoleonic Wars and the Congress of Vienna (1814–1815), to the end o ...
**
Anglo-German naval arms race
The arms race between Great Britain and Germany that occurred from the last decade of the nineteenth century until the advent of World War I in 1914 was one of the intertwined causes of that conflict. While based in a bilateral relationship tha ...
Notes
References
Sources
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Further reading
* Albertini, Luigi. ''The Origins of the War of 1914'' (3 vol 1952)
vol 2 online covers July 1914* Albrecht-Carrié, René. ''A Diplomatic History of Europe Since the Congress of Vienna'' (1958), 736pp; a basic introduction, 1815–195
online free to borrow* Anderson Frank Maloy, and Amos Shartle Hershey. '' Handbook for the diplomatic history of Europe, Asia, and Africa, 1870-1914'' (1918) detailed coverage of all major diplomatic events and many minor on
online* ; revisionist (argues that Germany was certainly not guilty)
* Beatty, Kack. ''The Lost History of 1914: The Year the Great War Began'' (2012) looks at major powers and argues war was not inevitable
excerpt* Brandenburg, Erich. (1927) ''From Bismarck to the World War: A History of German Foreign Policy 1870-1914'' (1927
online
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*
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* Clark, Christopher. ''Sleepwalkers: How Europe Went to War in 1914'' (2012), major comprehensive overview
** ''Sleepwalkers'' lecture by Clark
online
* essays by scholars from both sides
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**
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* Gooch, G.P. ''History of modern Europe, 1878-1919'' (2nd ed. 1956) pp 386–413.
online diplomatic history
* Gooch, G.P. ''Before the war: studies in diplomacy'' (2 vol 1936, 1938
onlinelong scholarly chapters on Britain's Landsdowne; France's
Théophile Delcassé
Théophile Delcassé (; 1 March 185222 February 1923) was a French politician who served as foreign minister from 1898 to 1905. He is best known for his hatred of German Empire, Germany and efforts to secure alliances with Russian Empire, Russ ...
; Germany's
Bernhard von Bülow
Bernhard Heinrich Karl Martin, Prince of Bülow ( ; 3 May 1849 – 28 October 1929) was a German politician who served as the chancellor of the German Empire, imperial chancellor of the German Empire and minister-president of Prussia from 1900 to ...
pp 187–284; Russia's
Alexander Izvolsky 285–365; and Austria'
Aehrenthal pp 366–438. vol 2: Grey, 1–133; Poincaré, 135–200; Bethmann Hollweg, 201–85; Sazonoff, 287–369; Berchtold, 371–447
vol 2 online*
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* Herwig, Holger H. and Neil Heyman. ''Biographical Dictionary of World War I'' (1982)
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* Hewitson, Mark. ''Germany and the Causes of the First World War'' (2004
online
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* , scholarly articles; no primary sources included
* Keiger, John F.V. ''France and the origins of the First World War'' (Macmillan, 1983
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* readings from multiple points of view
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* all three volumes combined
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* ; major scholarly overview
* Massie, Robert K. ''Dreadnought: Britain, Germany, and the coming of the Great War'' (Random House, 1991
excerpt see
Dreadnought (book), popular history
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* role of public opinion
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* Otte, T. G. ''July Crisis: The World's Descent into War, Summer 1914'' (Cambridge University Press, 2014)
online review
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*
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Ritter, Gerhard. ''The Sword and the Scepter: The Problem of Militarism in Germany: volume 2: The European powers and the Wilhelminian Empire, 1890-1914'' (1970
online chapters on the army role in politics in France, Britain, Russia, Austria-Hungary and especially Germany
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* Stavrianos, L.S. '' The Balkans Since 1453'' (1958), major scholarly history
online free to borrow*
[
* major reinterpretation
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* a major scholarly synthesis
* Taylor, A.J.P. '' The Struggle for Mastery in Europe 1848–1918'' (1954]
online free
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* Zametica, John. ''Folly and malice: the Habsburg empire, the Balkans and the start of World War One'' (London: Shepheard–Walwyn, 2017). 416pp.
Historiography
* Bresciani, Marco. "From 'East to West', the 'world crisis' of 1905-1920: a re-reading of Elie Halévy." ''First World War Studies'' 9.3 (2018): 275–295.
*
* Cornelissen, Christoph, and Arndt Weinrich, eds. ''Writing the Great War - The Historiography of World War I from 1918 to the Present'' (2020
free download
; full coverage for major countries.
*
* Evans, R. J. W. "The Greatest Catastrophe the World Has Seen" ''The New York Review of Books'' Feb 6, 2014
online
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* Horne, John, ed. ''A Companion to World War I'' (2012) 38 topics essays by scholars; emphasis on historiography.
*
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* Keene, Jennifer D. “Remembering the ‘Forgotten War’: American Historiography on World War I.” ''Historian'' 78 (Fall 2016): 439–68.
* Keene, Jennifer D. "Finding a place for World War I in American history. 1914 –2018.
online
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*
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* Levy, Jack S., and John A. Vasquez, eds. ''The Outbreak of the First World War: Structure, Politics, and Decision-Making'' (Cambridge UP, 2014).
*
*
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* Mombauer, Annika. ''The origins of the First World War: controversies and consensus.'' (2002)
*
*
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* Schroeder, Paul W. ''Stealing Horses to Great Applause: The Origins of the First World War Reconsidered'' (2025), influential essays by a leading historian
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* Sked, Alan. "Austria-Hungary and the First World War." ''Histoire Politique'' 1 (2014): 16–49
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Primary sources
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* Dugdale, E.T.S. ed. ''German Diplomatic Documents 1871-1914'' (4 vol 1928–31), in English translation
online
* French Ministry of Foreign Affairs, ''The French Yellow Book: Diplomatic Documents'' (1914)
* Gooch, G. P. ''Recent Revelations of European Diplomacy'' (1940); 475pp detailed summaries of memoirs from all the major belligerents
* Gooch, G.P. and Harold Temperley, eds. ''British documents on the origins of the war, 1898-1914'' (11 vol.
online
** v. i The end of British isolation—v.2. From the occupation of Kiao-Chau to the making of the Anglo-French entente Dec. 1897-Apr. 1904—V.3. The testing of the Entente, 1904-6 -- v.4. The Anglo-Russian rapprochment, 1903-7 -- v.5. The Near East, 1903-9 -- v.6. Anglo-German tension. Armaments and negotiation, 1907-12—v.7. The Agadir crisis—v.8. Arbitration, neutrality and security—v.9. The Balkan wars, pt.1-2 -- v.10, pt.1. The Near and Middle East on the eve of war. pt.2. The last years of peace—v.11. The outbreak of war V.3. The testing of the Entente, 1904-6 -- v.4. The Anglo-Russian rapprochment, 1903-7 -- v.5. The Near East, 1903-9 -- v.6. Anglo-German tension. Armaments and negotiation, 1907-12—v.7. The Agadir crisis—v.8. Arbitration, neutrality and security—v.9. The Balkan wars, pt.1-2 -- v.10, pt.1. The Near and Middle East on the eve of war. pt.2. The last years of peace—v.11. The outbreak of war.
** Gooch, G. P. and Harold Temperley, eds. ''British Documents on the Origins of the War 1898-1914 Volume XI, the Outbreak of War Foreign Office Documents'' (1926
online
* Gooch, G.P. ''Recent revelations of European diplomacy'' (1928) pp 269–330
online
summarizes new documents from Germany, pp 3–100; Austria, 103–17; Russia, 161–211; Serbia and the Balkans, 215–42; France, 269–330; Great Britain, 343–429; United States, 433–62.
* ''Hammond's frontier atlas of the world war : containing large scale maps of all the battle fronts of Europe and Asia, together with a military map of the United States'' (1916
online free
* Lowe, C.J. and M.L. Dockrill, eds. ''The Mirage of Power: The Documents of British Foreign Policy 1914-22'' (vol 3, 1972), pp 423–759
* Mombauer, Annika. ''The Origins of the First World War: Diplomatic and Military Documents'' (2013), 592pp;
* ''Reichstag speeches'
External links
* Mombauer, Annika
July Crisis 1914
in
1914-1918-online. International Encyclopedia of the First World War
* Mulligan, William
The Historiography of the Origins of the First World War
in
1914-1918-online. International Encyclopedia of the First World War
* Williamson, Jr., Samuel R.
The Way to War
in
1914-1918-online. International Encyclopedia of the First World War
* Brose, Eric
Arms Race prior to 1914, Armament Policy
in
1914-1918-online. International Encyclopedia of the First World War
by Norman Stone
The Origins of World War One
An article by Dr. Gary Sheffield at the BBC History site.
The Evidence in the Case: A Discussion of the Moral Responsibility for the War of 1914, as Disclosed by the Diplomatic Records of England, Germany, Russia
by James M. Beck
James Montgomery Beck (July 9, 1861 – April 12, 1936) was an American lawyer, politician, and author from Philadelphia, Pennsylvania, Philadelphia, Pennsylvania. He was a member of the Republican Party (United States), Republican Party, who se ...
{{Historiography
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...