On 3 September 1939, the

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 ...

declared war A declaration of war is a formal act by which one state announces existing or impending war activity against another. The declaration is a performative speech act (or the public signing of a document) by an authorized party of a national govern ...

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 ...

—two days after the German

invasion of Poland The invasion of Poland, also known as the September Campaign, Polish Campaign, and Polish Defensive War of 1939 (1 September – 6 October 1939), was a joint attack on the Second Polish Republic, Republic of Poland by Nazi Germany, the Slovak R ...

. France also

on Germany later the same day. The state of war was announced to the British public in a radio broadcast at 11:00 by the prime minister

Neville Chamberlain Arthur Neville Chamberlain (; 18 March 18699 November 1940) was a British politician who served as Prime Minister of the United Kingdom from May 1937 to May 1940 and Leader of the Conservative Party (UK), Leader of the Conservative Party from ...

Historical context

At the conclusion of the

First World War 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 ...

, the

German Empire The German Empire (),; ; World Book, Inc. ''The World Book dictionary, Volume 1''. World Book, Inc., 2003. p. 572. States that Deutsches Reich translates as "German Realm" and was a former official name of Germany. also referred to as Imperia ...

signed the

Armistice of 11 November 1918 The Armistice of 11 November 1918 was the armistice signed in a railroad car, in the Compiègne Forest near the town of Compiègne, that ended fighting on land, at sea, and in the air in World War I between the Entente and their las ...

as an end to hostilities with France, Britain, and the United States during the convoluted

German revolution of 1918–1919 German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also Ge ...

, which began on 29 October 1918. Negotiations between the Allied powers regarding post-war Europe started on 18 January 1919 in the Salle de l'Horloge at the French Foreign Ministry on the

Quai d'Orsay The Quai d'Orsay ( , ) is a quay in the 7th arrondissement of Paris. It is part of the left bank of the Seine opposite the Place de la Concorde. It becomes the Quai Anatole-France east of the Palais Bourbon, and the Quai Branly west of the ...

in Paris. Seventy delegates from 27 nations participated in the negotiations. The opposing nations of the

and the

Austro-Hungarian Empire 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 between 1867 and 1918. A military and diplomatic alliance, it consist ...

were excluded from the negotiations. At first a "Council of Ten" comprising two delegates each from Britain, France, the United States, Italy and Japan met officially to decide the peace terms. It became the "Big Four" when Japan dropped out and the top person from each of the other four nations met in 145 closed sessions to make all the major decisions to be ratified by the entire assembly. In June 1919, the Allies declared that war would resume if the German government did not sign the treaty they had agreed to among themselves. The government headed by

Philipp Scheidemann Philipp Heinrich Scheidemann (26 July 1865 – 29 November 1939) was a German politician of the Social Democratic Party of Germany (SPD). In the first quarter of the 20th century he played a leading role in both his party and in the young Weimar ...

was unable to agree on a common position, and Scheidemann himself resigned rather than agree to sign the treaty.

Gustav Bauer Gustav Adolf Bauer (; 6 January 1870 – 16 September 1944) was a German Social Democratic Party leader and the chancellor of Germany from June 1919 to March 1920. Prior to that, he was minister of labour in the last cabinet of the German Empi ...

, the head of the new government, sent a telegram stating his intention to sign the treaty if certain articles were withdrawn, including articles 227, 230 and 231. In response, the Allies issued an ultimatum stating that Germany would have to accept the treaty or face an invasion of Allied forces across the Rhine within 24 hours. On 23 June 1919, Bauer capitulated and sent a second telegram with a confirmation that a German delegation would arrive shortly to sign the treaty. On 28 June 1919, Germany signed the

Treaty of Versailles The Treaty of Versailles was a peace treaty signed on 28 June 1919. As the most important treaty of World War I, it ended the state of war between Germany and most of the Allies of World War I, Allied Powers. It was signed in the Palace ...

, a peace treaty which ended the formal state of war and imposed various punitive measures upon Germany, including military restrictions, loss of territory and colonies, war reparations, and effective acceptance of blame for the initiation of hostilities in World War I. At the time of the armistice, in the first stages of the German Revolution, power had passed provisionally to leaders of the

Social Democratic Party The name Social Democratic Party or Social Democrats has been used by many political parties in various countries around the world. Such parties are most commonly aligned to social democracy as their political ideology. Active parties Form ...

, the abdication of the Emperor of Germany was announced on 9 November 1918, and what became known as the

Weimar Republic The Weimar Republic, officially known as the German Reich, was the German Reich, German state from 1918 to 1933, during which it was a constitutional republic for the first time in history; hence it is also referred to, and unofficially proclai ...

was subsequently established through a constituent national assembly. The transition from

monarchy A monarchy is a form of government in which a person, the monarch, reigns as head of state for the rest of their life, or until abdication. The extent of the authority of the monarch may vary from restricted and largely symbolic (constitutio ...

republic A republic, based on the Latin phrase ''res publica'' ('public affair' or 'people's affair'), is a State (polity), state in which Power (social and political), political power rests with the public (people), typically through their Representat ...

was difficult, and many in the new Republic were not supportive of the democratic system of government. The officer class gave little support to the Republic, and Germany was forced to borrow money from the United States and others to pay its

war debt War reparations are compensation payments made after a war by one side to the other. They are intended to cover Collateral damage, damage or injury inflicted during a war. War reparations can take the form of hard currency, precious metals, natur ...

, imposed by the Treaty of Versailles. In the early 1920s a period of

hyperinflation In economics, hyperinflation is a very high and typically accelerating inflation. It quickly erodes the real versus nominal value (economics), real value of the local currency, as the prices of all goods increase. This causes people to minimiz ...

made the ''

Mark Mark may refer to: In the Bible * Mark the Evangelist (5–68), traditionally ascribed author of the Gospel of Mark * Gospel of Mark, one of the four canonical gospels and one of the three synoptic gospels Currencies * Mark (currency), a currenc ...

'' almost worthless. In January 1922, one

US dollar The United States dollar (symbol: $; currency code: USD) is the official currency of the United States and several other countries. The Coinage Act of 1792 introduced the U.S. dollar at par with the Spanish silver dollar, divided it int ...

was worth 191 Marks, but by November of the same year it was equal to 4,200,000,000 Marks. On 30 January 1933,

Adolf Hitler Adolf Hitler (20 April 1889 – 30 April 1945) was an Austrian-born German politician who was the dictator of Nazi Germany from 1933 until Death of Adolf Hitler, his suicide in 1945. Adolf Hitler's rise to power, He rose to power as the lea ...

was appointed Chancellor of the Reich following a contentious election. Under Hitler's leadership, the Reichstag turned the government into an effective

dictatorship A dictatorship is an autocratic form of government which is characterized by a leader, or a group of leaders, who hold governmental powers with few to no Limited government, limitations. Politics in a dictatorship are controlled by a dictator, ...

under Hitler's oversight on 21 March 1933 with the passage of the

Enabling Act of 1933 The Enabling Act of 1933 ( German: ', officially titled ' ), was a law that gave the German Cabinet—most importantly, the chancellor, Adolf Hitler—the power to make and enforce laws without the involvement of the Reichstag or President Pa ...

, and the economic hardships were significantly diminished via implementation of new economic and social policies. After five years in power, Hitler annexed Austria, former component of the

(allies of the former

), into Germany, despite such an act (specifically, "prohibition on the merging of Austria with Germany without the consent of the League of Nations") being banned by both the Treaty of Saint-Germain-en-Laye and the Treaty of Versailles. In early November 1938, the

First Vienna Award The First Vienna Award was a treaty signed on 2 November 1938 pursuant to the Vienna Arbitration, which took place at Vienna's Belvedere Palace. The arbitration and award were direct consequences of the previous month's Munich Agreement, whic ...

was signed, allowing Germany to seize the

Sudetenland The Sudetenland ( , ; Czech and ) is a German name for the northern, southern, and western areas of former Czechoslovakia which were inhabited primarily by Sudeten Germans. These German speakers had predominated in the border districts of Bohe ...

, a German-speaking area of

Czechoslovakia Czechoslovakia ( ; Czech language, Czech and , ''Česko-Slovensko'') was a landlocked country in Central Europe, created in 1918, when it declared its independence from Austria-Hungary. In 1938, after the Munich Agreement, the Sudetenland beca ...

which had been a part of the German Empire-allied Austro-Hungarian Empire. Soon after, Germany invaded the rest of Czechoslovakia and also gained Memelland (part of the former German Empire from 1871–1920) through the

1939 German ultimatum to Lithuania On 20 March 1939, Nazi Germany's foreign minister Joachim von Ribbentrop presented an oral ultimatum to Juozas Urbšys, foreign minister of Lithuania. Germany demanded that Lithuania give up the Klaipėda Region (also known as the Memel Territo ...

. Two

Western powers The Western world, also known as the West, primarily refers to various nations and states in Western Europe, Northern America, and Australasia; with some debate as to whether those in Eastern Europe and Latin America also constitute the West. ...

, the United Kingdom and France, gave

guarantees A contract is an agreement that specifies certain legally enforceable rights and obligations pertaining to two or more parties. A contract typically involves consent to transfer of goods, services, money, or promise to transfer any of those at ...

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...

that they would declare war if Polish independence came under threat, as presented in a statement to the

House of Commons The House of Commons is the name for the elected lower house of the Bicameralism, bicameral parliaments of the United Kingdom and Canada. In both of these countries, the Commons holds much more legislative power than the nominally upper house of ...

by the British Prime Minister

on 31 March 1939 (formalized by the British on 6 April 1939; not ratified until 4 September 1939 by the French):

After the declaration of war

The Royal Navy initiated a naval blockade of Germany on 4 September. Although Britain and France honoured these guarantees by declaring war two days after Germany's

on 1 September 1939, and the

dominion A dominion was any of several largely self-governance, self-governing countries of the British Empire, once known collectively as the ''British Commonwealth of Nations''. Progressing from colonies, their degrees of self-governing colony, colon ...

s of the British Empire quickly followed suit, so little practical assistance was given to Poland, which was soon defeated, that in its early stages the war declared by Britain and France was described as a "

Phoney War The Phoney War (; ; ) was an eight-month period at the outset of World War II during which there were virtually no Allied military land operations on the Western Front from roughly September 1939 to May 1940. World War II began on 3 Septembe ...

". Further, neither the

British Empire The British Empire comprised the dominions, Crown colony, colonies, protectorates, League of Nations mandate, mandates, and other Dependent territory, territories ruled or administered by the United Kingdom and its predecessor states. It bega ...

nor the French ever declared war upon the

Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

, which invaded Poland on 17 September 1939 (16 days after

Nazi Germany Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalit ...

invaded from the West). The Polish ambassador in London, Edward Bernard Raczyński, contacted the British Foreign Office to point out that clause 1(b) of the agreement, which concerned an "aggression by a European power" on Poland, should apply to the Soviet invasion. Foreign Secretary

Lord Halifax Edward Frederick Lindley Wood, 1st Earl of Halifax (16 April 1881 – 23 December 1959), known as the Lord Irwin from 1925 until 1934 and the Viscount Halifax from 1934 until 1944, was a British Conservative politician of the 1930s. He h ...

responded that the obligation of British Government towards Poland arising out of the Anglo-Polish Agreement was restricted to Germany, according to the first clause of the secret protocol. The Soviet Union held sway over the former Polish territory at the war's conclusion, having become a part of the

Allies An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not an explicit agreement has been worked out among them. Members of an alliance are calle ...

in the course of

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

. At the insistence of

Joseph Stalin Joseph Vissarionovich Stalin (born Dzhugashvili; 5 March 1953) was a Soviet politician and revolutionary who led the Soviet Union from 1924 until Death and state funeral of Joseph Stalin, his death in 1953. He held power as General Secret ...

, the post-war

Yalta Conference The Yalta Conference (), held 4–11 February 1945, was the World War II meeting of the heads of government of the United States, the United Kingdom, and the Soviet Union to discuss the postwar reorganization of Germany and Europe. The three sta ...

in 1945 sanctioned the formation of a new provisional pro-Communist coalition government in Moscow, which ignored the

Polish government-in-exile The Polish government-in-exile, officially known as the Government of the Republic of Poland in exile (), was the government in exile of Poland formed in the aftermath of the Invasion of Poland of September 1939, and the subsequent Occupation ...

based in London.

References

{{Neville Chamberlain, state=collapsed Declarations of war during World War II France in World War II United Kingdom in World War II British Empire in World War II Declaration of War on Germany France–Germany military relations Germany–United Kingdom military relations France–United Kingdom military relations 1939 documents Germany in World War II

Historical context

After the declaration of war

See also

References