The Macedonian front, also known as the Salonica front (after
Thessaloniki
Thessaloniki (; ), also known as Thessalonica (), Saloniki, Salonika, or Salonica (), is the second-largest city in Greece (with slightly over one million inhabitants in its Thessaloniki metropolitan area, metropolitan area) and the capital cit ...
), was a military theatre of
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 ...
formed as a result of an attempt by the
Allied Powers to aid
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 ...
, in the autumn of 1915, against the
combined attack of
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 ...
,
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
Bulgaria
Bulgaria, officially the Republic of Bulgaria, is a country in Southeast Europe. It is situated on the eastern portion of the Balkans directly south of the Danube river and west of the Black Sea. Bulgaria is bordered by Greece and Turkey t ...
. The expedition came too late and with insufficient force to prevent the fall of Serbia and was complicated by the internal political crisis in
Greece
Greece, officially the Hellenic Republic, is a country in Southeast Europe. Located on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey to th ...
(the
National Schism). Eventually, a stable front was established, running from the
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 ...
n
Adriatic
The Adriatic Sea () is a body of water separating the Italian Peninsula from the Balkans, Balkan Peninsula. The Adriatic is the northernmost arm of the Mediterranean Sea, extending from the Strait of Otranto (where it connects to the Ionian Se ...
coast to the
Struma River, pitting a
multinational Allied force against the
Bulgarian army
The Bulgarian Army (), also called Bulgarian Armed Forces, is the military of Bulgaria. The commander-in-chief is the president of Bulgaria. The Ministry of Defense is responsible for political leadership, while overall military command is in ...
, which was at various times bolstered with smaller units from the other
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 ...
. The Macedonian front remained stable, despite local actions, until the
Allied offensive in September 1918 resulted in Bulgaria capitulating and the liberation of Serbia.
Background
Following the
assassination of Archduke Franz Ferdinand
The assassination of Archduke Franz Ferdinand was one of the key events that led to World War I. Archduke Franz Ferdinand of Austria, heir presumptive to the Austria-Hungary, Austro-Hungarian throne, and his wife, Sophie, Duchess of Hohenberg ...
by a
Bosnian Serb,
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 ...
had attacked
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 ...
in August 1914 but had failed to overcome Serbian resistance. After the entry 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 ...
into the war on the side of 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 ...
(November 1914), the decisive factor in the Balkans became the attitude of
Bulgaria
Bulgaria, officially the Republic of Bulgaria, is a country in Southeast Europe. It is situated on the eastern portion of the Balkans directly south of the Danube river and west of the Black Sea. Bulgaria is bordered by Greece and Turkey t ...
. Bulgaria occupied a strategically important position on the Serbian flank, and its intervention on either side of the belligerents would be decisive. Bulgaria and Serbia had fought each other twice in the previous thirty years: in the
Serbo-Bulgarian War of 1885 and 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 ...
of 1913. Bulgaria had suffered defeat in 1913, and the Bulgarian government and people generally felt that Serbia had seized land which rightfully belonged to Bulgaria. While the Allies could only offer Bulgaria small territorial concessions from Serbia and neutral Greece, the Central Powers' promises appeared far more enticing, offering to cede most of the land
Bulgaria claimed. With the Allied defeats at the
Battle of Gallipoli (April 1915 to January 1916) and the Russian defeat at
Gorlice-Tarnów (May to September 1915) demonstrating the Central Powers' strength, King
Ferdinand
Ferdinand is a Germanic name composed of the elements "journey, travel", Proto-Germanic , abstract noun from root "to fare, travel" (PIE , "to lead, pass over"), and "courage" or "ready, prepared" related to Old High German "to risk, ventu ...
signed a treaty with Germany and on 21 September 1915 Bulgaria began mobilizing for war.
Triple invasion and the fall of Serbia

After the victory of the
Royal Serbian Army in the
Battle of Kolubara in December 1914, the Serbian front saw a lull until the early autumn of 1915. Under the command of Field Marshal
August von Mackensen, the Austro-Hungarian
Balkan Army, the German
11th Army and river flotillas on the
Danube
The Danube ( ; see also #Names and etymology, other names) is the List of rivers of Europe#Longest rivers, second-longest river in Europe, after the Volga in Russia. It flows through Central and Southeastern Europe, from the Black Forest sou ...
and the
Sava
The Sava, is a river in Central Europe, Central and Southeast Europe, a right-bank and the longest tributary of the Danube. From its source in Slovenia it flows through Croatia and along its border with Bosnia and Herzegovina, and finally reac ...
began an offensive on 6 October 1915, the largest offensive against Serbia. By September 1915, despite the extreme sacrifice of the Serbian army, the Austro-Hungarian Balkan Army, having crossed the rivers Sava and
Drina
The Drina ( sr-Cyrl, Дрина, ) is a long river in the Balkans, which forms a large portion of the border between Bosnia and Herzegovina and Serbia. It is the longest tributary of the Sava River and the longest karst river in the Dinaric Al ...
, and the German 11th Army after crossing the Danube, occupied
Belgrade
Belgrade is the Capital city, capital and List of cities in Serbia, largest city of Serbia. It is located at the confluence of the Sava and Danube rivers and at the crossroads of the Pannonian Basin, Pannonian Plain and the Balkan Peninsula. T ...
,
Smederevo
Smederevo ( sr-Cyrl, Смедерево, ) is a list of cities in Serbia, city and the administrative center of the Podunavlje District in eastern Serbia. It is situated on the right bank of the Danube, about downstream of the Serbian capital, ...
,
Požarevac
Požarevac ( sr-cyr, Пожаревац, ) is a list of cities in Serbia, city and the administrative centre of the Braničevo District in eastern Serbia. It is located between three rivers: Danube, Great Morava and Mlava and below the hill Čač ...
and
Golubac, creating a vast bridgehead south of the Sava and Danube rivers, and forcing Serbian forces to withdraw to southern Serbia.
On 15 October 1915, two Bulgarian armies attacked, over-running Serbian units and penetrating the valley of the
South Morava river near
Vranje
Vranje ( sr-Cyrl, Врање, ) is a city in Southern Serbia and the administrative center of the Pčinja District. According to the 2022 census, the city itself has a population of 55,214 while the city administrative area has 74,381 inhabitan ...
up to 22 October 1915. The Bulgarian forces occupied
Kumanovo
Kumanovo ( ; , sq-definite, Kumanova; also known by other #Etymology, alternative names) is the second-largest city in North Macedonia after the capital Skopje and the seat of Kumanovo Municipality, the List of municipalities in the Republic ...
,
Štip
Štip ( ) is the largest urban agglomeration in the eastern part of North Macedonia, serving as the economic, industrial, entertainment and educational focal point for the surrounding municipalities.
As of the 2021 census, the city of Štip had ...
, and
Skopje
Skopje ( , ; ; , sq-definite, Shkupi) is the capital and largest city of North Macedonia. It lies in the northern part of the country, in the Skopje Basin, Skopje Valley along the Vardar River, and is the political, economic, and cultura ...
and prevented the withdrawal of the Serbian army to the
Greek
Greek may refer to:
Anything of, from, or related to Greece, a country in Southern Europe:
*Greeks, an ethnic group
*Greek language, a branch of the Indo-European language family
**Proto-Greek language, the assumed last common ancestor of all kno ...
border and
Thessaloniki
Thessaloniki (; ), also known as Thessalonica (), Saloniki, Salonika, or Salonica (), is the second-largest city in Greece (with slightly over one million inhabitants in its Thessaloniki metropolitan area, metropolitan area) and the capital cit ...
(Salonika).

The Allies (
Britain
Britain most often refers to:
* Great Britain, a large island comprising the countries of England, Scotland and Wales
* The United Kingdom of Great Britain and Northern Ireland, a sovereign state in Europe comprising Great Britain and the north-eas ...
and
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 ...
) had repeatedly promised to send military forces to Serbia, but nothing had materialized for a year. However, with Bulgaria's mobilization to its south, the situation for Serbia became desperate. The developments finally forced the French and the British to decide upon sending a small expedition force of two divisions from Gallipoli (
156th Infantry Division (France) and
10th (Irish) Division respectively). Though the first troops landed in the port of Salonika on 5 October to combine into an
Army of the Orient under the French commander
Maurice Sarrail, they arrived in the Greek port of Thessaloniki too late to contribute to the operations to help Serbia. The main reason for the delay was the lack of available Allied forces due to the critical situation in the
Western Front. The
Allies used Greek neutrality as an excuse, although they could have used the
Albanian coast to rapidly deploy reinforcements and equipment during the first 14 months of the war. (As the Serbian Marshal
Radomir Putnik had suggested, the
Royal Montenegrin Army gave adequate cover to the Albanian coast from the north—at a safe distance from any Bulgarian advance in the south in the event of a Bulgarian intervention.) The Allies was also delayed due to protracted through finally fruitless secret negotiations to bring Bulgaria into the Allied camp, which would have alleviated Serbia's need for Franco-British help.
In the event, the lack of Allied support sealed the fate of the Serbian army. Against Serbia, the Central Powers marshalled the Bulgarian Army, a German army, and an Austro-Hungarian army, all under the command of Field Marshal
August von Mackensen. The Germans and Austro-Hungarians began their attack on 7 October with a massive artillery barrage, followed by attacks across the rivers. Then, on 11 October, the Bulgarian army attacked from two directions, one from the north of Bulgaria towards
Niš
Niš (; sr-Cyrl, Ниш, ; names of European cities in different languages (M–P)#N, names in other languages), less often spelled in English as Nish, is the list of cities in Serbia, third largest city in Serbia and the administrative cente ...
, the other from the south towards
Skopje
Skopje ( , ; ; , sq-definite, Shkupi) is the capital and largest city of North Macedonia. It lies in the northern part of the country, in the Skopje Basin, Skopje Valley along the Vardar River, and is the political, economic, and cultura ...
(see map). The Bulgarian army rapidly broke through the weaker Serbian forces that tried to block its advance. With the Bulgarian breakthrough, the Serbian position became hopeless; their main army in the north faced either encirclement and forced surrender or retreat.
Marshal Putnik ordered a full
Serbian retreat, southwards and westwards through Montenegro and into Albania. The Serbs faced great difficulties: terrible weather, poor roads and the need for the army to help the tens of thousands of civilians who retreated with them. Only soldiers reached the Adriatic coast and embarked on Italian transport ships that carried the army to
Corfu
Corfu ( , ) or Kerkyra (, ) is a Greece, Greek island in the Ionian Sea, of the Ionian Islands; including its Greek islands, small satellite islands, it forms the margin of Greece's northwestern frontier. The island is part of the Corfu (regio ...
and other Greek islands before it travelled on to Thessaloniki. Marshal Putnik had to be carried around during the entire retreat; he died just over a year later in a French hospital.
The French and British divisions marched north from Thessaloniki in October 1915 under the joint command of French General
Maurice Sarrail and British General
Bryan Mahon (Commander,
British Salonika Force, 1915). However, the London
War Office
The War Office has referred to several British government organisations throughout history, all relating to the army. It was a department of the British Government responsible for the administration of the British Army between 1857 and 1964, at ...
was reluctant to advance too deep into Serbia. So the French divisions advanced up the
Vardar
The Vardar (; , , ) or Axios (, ) is the longest river in North Macedonia and a major river in Greece, where it reaches the Aegean Sea at Thessaloniki. It is long, out of which are in Greece, and drains an area of around . The maximum depth of ...
river alone. This advance gave some limited help to the retreating Serbian army, as the Bulgarians had to concentrate larger forces on their southern flank to deal with the threat, which led to the
Battle of Krivolak (October–November 1915). By the end of November, General Sarrail had to retreat in the face of massive Bulgarian assaults on his positions. During his retreat, the
British at Kosturino were also forced to retreat. By 12 December, all Allied forces were back in Greece. The Germans ordered the Bulgarians not to cross the Greek borders, reluctant to risk a Greek entry into the war in response to a Bulgarian invasion in Macedonia. The Allies took advantage of that, reinforcing and consolidating their positions behind the borders.
Thus there resulted in a clear, albeit incomplete, victory for the Central Powers. They opened the railway line from
Berlin to Constantinople, allowing Germany to prop up its weaker partner, the Ottoman Empire. Despite the victory, the Allies managed to save a part of the
Royal Serbian Army, while although battered, seriously reduced, and almost unarmed, escaped destruction and reorganized, resuming operations six months later. And most damagingly for the Central Powers, the Allies—using the moral excuse of saving the Serbian army—managed to replace the impossible Serbian front with a viable one established in Macedonia (albeit by violating the territory of an officially neutral country); this front would prove key to their final victory three years later.
Establishment of the Macedonian front

On 5 January 1916, the Austro-Hungarian Army
attacked Serbian ally Montenegro. The small Montenegrin army offered strong resistance in the
Battle of Mojkovac, which greatly helped the withdrawal of the Serbian army, but soon faced impossible odds and was compelled to surrender on 25 January. The Austro-Hungarians advanced down the coast of the
Adriatic Sea
The Adriatic Sea () is a body of water separating the Italian Peninsula from the Balkans, Balkan Peninsula. The Adriatic is the northernmost arm of the Mediterranean Sea, extending from the Strait of Otranto (where it connects to the Ionian Se ...
into Italian-controlled
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 ...
. By the end of the winter, the small Italian army in Albania had been forced out of nearly the whole country. With the war in the Balkans almost lost, the British General Staff wanted to withdraw all British troops from Greece, but the French government protested strongly, and the troops remained. The Allied armies entrenched around Thessaloniki, which became a huge fortified camp, earning themselves the mocking nickname "the Gardeners of Salonika". The Serbian army (now under the command of General
Petar Bojović), after rest and refit on
Corfu
Corfu ( , ) or Kerkyra (, ) is a Greece, Greek island in the Ionian Sea, of the Ionian Islands; including its Greek islands, small satellite islands, it forms the margin of Greece's northwestern frontier. The island is part of the Corfu (regio ...
, was transported by the French to the Macedonian front.
In the meantime, the political situation in Greece was confusing. Officially, Greece was neutral, but King
Constantine I
Constantine I (27 February 27222 May 337), also known as Constantine the Great, was a Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity. He played a Constantine the Great and Christianity, pivotal ro ...
was pro-German, while Prime Minister
Eleftherios Venizelos
Eleftherios Kyriakou Venizelos (, ; – 18 March 1936) was a Cretan State, Cretan Greeks, Greek statesman and prominent leader of the Greek national liberation movement. As the leader of the Liberal Party (Greece), Liberal Party, Venizelos ser ...
was pro-Allied. Venizelos invited the Allies into Thessaloniki. With the knowledge that
Romania
Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to ...
was about to join the Allied side, General Sarrail began preparations for an attack on the Bulgarian armies facing his forces. The Germans made plans of their own for a "spoiling attack". The German offensive was launched on 17 August, just three days before the French offensive was scheduled to start. This was a Bulgarian offensive, as the Austro-Hungarian army was in Albania, and only one German division was on the Greek border. The Bulgarians attacked on two fronts. In the east, they easily conquered all Greek territory east of the river Struma (see
Struma Offensive) since the
Greek army
The Hellenic Army (, sometimes abbreviated as ΕΣ), formed in 1828, is the land force of Greece. The term '' Hellenic'' is the endogenous synonym for ''Greek''. The Hellenic Army is the largest of the three branches of the Hellenic Armed F ...
was ordered not to resist by the pro-German King Constantine. The attack achieved early success in the west thanks to surprise, but the Allied forces held a defensive line after two weeks. Having halted the Bulgarian offensive, the Allies staged a counter-attack starting on 12 September (
Battle of Kaymakchalan). The terrain was rough, and the Bulgarians were on the defensive, but the Allied forces made steady gains. Slow advances by the Allies continued throughout October and into November, even as the weather turned cold and snow fell on the hills. Though the Germans sent two more divisions to help bolster the Bulgarian army, by 19 November, the French and Serbian armies captured
Kaymakchalan, the highest peak of
Nidže mountain and compelled the Central powers to abandon
Bitola
Bitola (; ) is a city in the southwestern part of North Macedonia. It is located in the southern part of the Pelagonia valley, surrounded by the Baba, Nidže, and Kajmakčalan mountain ranges, north of the Medžitlija-Níki border crossing ...
to the Allies; Bulgarians and Germans were killed, wounded or captured. The Allies suffered c. 50,000 battle casualties while another 80,000 men died or were evacuated due to sickness. The front moved about .
The unopposed Bulgarian advance into Greek-held eastern Macedonia precipitated a crisis in Greece. Though the royalist government ordered its troops in the area (the demobilized
IV Corps) not to resist and to retreat to the port of
Kavala for evacuation, naval vessels did not turn up to permit the evacuation to take place. Despite occasional local resistance from a few officers and their nucleus units, most of the troops, including their commander, surrendered to a token German force and were interned for the remainder of the war at
Görlitz
Görlitz (; ; ; ; ; Lusatian dialects, East Lusatian: , , ) is a town in the Germany, German state of Saxony. It is on the river Lusatian Neisse and is the largest town in Upper Lusatia, the second-largest town in the region of Lusatia after ...
, Germany. The surrender of territory recently won with difficulty in 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 ...
of 1913 was the last straw for many Venizelist army officers. With Allied assistance, they launched a coup which secured Thessaloniki and most of
Greek Macedonia for Venizelos. From that point, Greece had two governments: the "official" royal government at Athens, which maintained Greek neutrality, and the "revolutionary" Venizelist "
Provisional Government of National Defence" at Thessaloniki, this division became known as
National Schism. At the same time, the Italians had deployed more forces to Albania, which managed to push the Austrian corps back through very hilly country south of
Lake Ostrovo.
The Allies treated Salonika very much like a colony.
Thessaloniki
Thessaloniki (; ), also known as Thessalonica (), Saloniki, Salonika, or Salonica (), is the second-largest city in Greece (with slightly over one million inhabitants in its Thessaloniki metropolitan area, metropolitan area) and the capital cit ...
was more ethically and religiously mixed than today, and was viewed by the British and French soldiers as an exotic "Oriental" city with its winding, cramped streets, domes, churches, synagogues, mosques, and the very striking
White Tower that overlooked the city. Thessaloniki had been part of the Ottoman Empire until 1912 when it was won by Greece in 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 ...
, and in 1915 the city still had a very Ottoman feel to it. Etienne Burnet, a French bacteriologist sent out from Paris to take part in an anti-malaria campaign marveled: "What a multi-colored crowd on the quayside! Caftans, turbans, western suites in the latest style, black robes and scarlet fezzes like poppies" and Thessaloniki was "both wretched and splendid, just like the Orient". Burnet's reaction to Thessaloniki was very typical of the Anglo-French responses to Thessaloniki, a city that did not match expectations of classical Greece and seemed to them to be more Ottoman than Greek. The treatment of the local women by their menfolk created much disgust as the women were always cloistered away or treated as "beasts of burden". Many of the French soldiers were peasants who were much incensed by the backward state of agriculture in the farms outside of Thessaloniki, which led many French soldiers to complain about the primitive farming methods of Macedonia. The French in particular saw themselves as engaged in the ''mission civilisatrice'' ("civilizing mission"), which led for the
French Army
The French Army, officially known as the Land Army (, , ), is the principal Army, land warfare force of France, and the largest component of the French Armed Forces; it is responsible to the Government of France, alongside the French Navy, Fren ...
to embark upon a series of public works projects such as building bridges, improving roads, providing piped water to rural villages, trying to eradicate malaria, and so forth. Such projects were intended primarily to benefit the French Army, but many French officers genuinely believed that helping the local people "come to love France", as one French colonel put it, was an idealistic goal in and of itself was worth pursuing. Of the 8 French Army divisions stationed on the Salonika front, three were colonial divisions while the 156th French Division had a significant number of colonial units attached to it. Of the 221,000 French troops who served in Macedonia, at least 47,000 (21%) were colonial units, mostly the ''
tirailleurs sénégalais'' from
West Africa
West Africa, also known as Western Africa, is the westernmost region of Africa. The United Nations geoscheme for Africa#Western Africa, United Nations defines Western Africa as the 16 countries of Benin, Burkina Faso, Cape Verde, The Gambia, Gha ...
, a number of units from
Algeria
Algeria, officially the People's Democratic Republic of Algeria, is a country in the Maghreb region of North Africa. It is bordered to Algeria–Tunisia border, the northeast by Tunisia; to Algeria–Libya border, the east by Libya; to Alger ...
, and the ''
Tirailleurs indochinois'' from
French Indochina
French Indochina (previously spelled as French Indo-China), officially known as the Indochinese Union and after 1941 as the Indochinese Federation, was a group of French dependent territories in Southeast Asia from 1887 to 1954. It was initial ...
. Algeria was considered part of France at the time and a significant minority in Algeria were ''
pieds-noirs
The (; ; : ) are an ethno-cultural group of people of French and other European descent who were born in Algeria during the period of French colonial rule from 1830 to 1962. Many of them departed for mainland France during and after the ...
'' as the European settlers were called, and the French did not necessarily consider Algerian units to be colonial units; it is possible that at least third of the French ''Armée d' Orient'' were colonial units. The presence of so many colonial units from Algeria, French West Africa, Madagascar and Indochina led to a "reverse exoticism" for the Greek Macedonia as Vietnamese soldiers serving in the ''tirailleurs indochinois'' celebrated their traditional Vietnamese holidays, which provided unusual spectacles in the Balkans.
The troops of the 10th (Irish) Division of the British Army had a very "live and let live" attitude towards their Bulgarian enemies, and refrained from trench raids, only shelled each other's trenches at specific times to avoid inconvenience to the other side and often avoided shooting at the enemy. The mostly Irish troops in their letters to their families back home often described Bulgarians as "Brother Bulgar", and reserved all their hatred for the Germans and the British General Staff, which they accused of neglecting them.
1917
By spring 1917, General Sarrail's ''
Allied Army of the Orient'' had been reinforced to six French, six Serbian, seven British, one Italian, three Greek and
two Russian brigades. An offensive was planned for late April, but the initial attack failed with significant losses, and the offensive was called off on 21 May. To put more pressure on Athens, the Venizelists and the Allies occupied
Thessaly
Thessaly ( ; ; ancient Aeolic Greek#Thessalian, Thessalian: , ) is a traditional geographic regions of Greece, geographic and modern administrative regions of Greece, administrative region of Greece, comprising most of the ancient Thessaly, a ...
and
Isthmus of Corinth
The Isthmus of Corinth ( Greek: Ισθμός της Κορίνθου) is the narrow land bridge which connects the Peloponnese peninsula with the rest of the mainland of Greece, near the city of Corinth. The wide Isthmus was known in the a ...
, dividing the country. After an attempt to occupy Athens by force, which caused the reaction of the local royalist forces and ended in a fiasco in December (see
Noemvriana), the Allies established a naval blockade around southern Greece, which was still loyal to King Constantine, causing extreme hardship to the people in those areas. Six months later, in June, the Venizelists presented a list of conditions, resulting in the exile of the Greek king (on 14 June, his son
Alexander
Alexander () is a male name of Greek origin. The most prominent bearer of the name is Alexander the Great, the king of the Ancient Greek kingdom of Macedonia who created one of the largest empires in ancient history.
Variants listed here ar ...
became king) and the reunification of the country under Venizelos. The new government immediately declared war on the Central Powers and created a new army.
1918
Opposing forces in the middle of September
Central Powers
Allies
Military operations
On 30 May 1918, the Allies launched an offensive on the heavily fortified
Skra salient, commencing the
battle of Skra-di-Legen.
The battle marked the first significant Greek action for the Allied side. Utilizing the cover of heavy artillery, a Franco-
Hellenic force made a rapid push into the enemy trenches, conquering Skra and the surrounding system of fortifications. Greek casualties amounted to 434–440 killed in action, 154–164 missing in action and 1,974–2,220 wounded, while France lost approximately 150 men killed or injured. A total of 1,782 soldiers of the Central Powers became prisoners of war, including a small number of German engineers and artillery specialists that served in Bulgarian units; considerable amounts of military equipment also fell into Allied hands. The plan for a Bulgarian counteroffensive against Skra remained unfulfilled as Bulgarian soldiers refused to participate in the operation. Both the Greek and the French press used the opportunity to laud the efforts of the Greek army, favourably influencing the Greek mobilization.
The fall of Skra prompted Bulgarian prime minister
Vasil Radoslavov
Vasil Hristov Radoslavov () (27 July 1854 – 21 October 1929) was a leading Bulgarian liberalism, liberal politician who twice served as List of Prime Ministers of Bulgaria, prime minister. He was premier of the country throughout most of W ...
to resign on 21 June 1918.
Aleksandar Malinov, who assumed office immediately afterwards, pursued secret negotiations with Britain, offering to withdraw Bulgaria from the war with the condition that Bulgaria fully retain eastern Macedonia. However, British prime minister
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 ...
rejected the proposal, assuring the Greek ambassador in London
Ioannis Gennadius that Britain would not act against Greek interests.

With the German spring offensive threatening France, Guillaumat was recalled to
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 ...
and replaced by General
Franchet d'Espèrey. Although d'Espèrey urged an attack on the Bulgarian army, the French government refused to allow an offensive unless all the countries agreed. General Guillaumat, no longer needed in France, travelled from
London
London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...
to
Rome
Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
, trying to win approval for an attack. Finally, in September 1918, an agreement was reached, allowing d'Espèrey to launch his grand offensive.
The Allied forces were now large, despite the Russian exit from the war due to the
Treaty of Brest-Litovsk
The Treaty of Brest-Litovsk was a separate peace treaty signed on 3 March 1918 between Soviet Russia and the Central Powers (Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria), by which Russia withdrew from World War I. The treaty, whi ...
in March 1918. Greece and its army (nine divisions) were fully committed to the Entente, while 6,000 Czech and Slovak former prisoners of war held on the
Italian front were re-armed, reorganized, and transferred to the Macedonian front to fight for the Allies. The Bulgarians had also increased their army during 1917, leading both sides to have roughly equal military power battalions vs. battalions and ten German battalions). However, as 1918 progressed, it was clear that the Allies had the momentum the Central Powers lacked.
Russian defeat had yielded no meaningful benefit to the Central Powers. The Ottoman Empire faced a progressive loss of Arab lands. In Austria-Hungary, non-German and non-Hungarian parts of the multinational empire grew more openly restive. On the
Western Front, intense German spring offensives had not defeated France, and American deployment was increasingly effective, with US forces operating under independent command from June 1918. Though Bulgaria was not at war with the United States, German victory over the United States appeared conceptually infeasible. Finally, and most importantly for Bulgaria, although almost all of its
territorial war aims were already achieved, because World War I was not merely a third
Balkan War
The Balkan Wars were two conflicts that took place in the Balkan states in 1912 and 1913. In the First Balkan War, the four Balkan states of Greece, Serbia, Montenegro and Bulgaria declared war upon the Ottoman Empire and defeated it, in the ...
, Bulgaria could not quit. Alongside its partners, Bulgaria continued to suffer high casualties and civilian privation, including food shortages, seemingly to achieve the unrealized objectives of its allies. As a constitutional monarchy, Bulgaria depended on the consent of its people to keep fighting while stress and discontent with the war grew.
An unintentional result of the Treaty of Brest-Litovsk which ended the war with Russia and the
Treaty of Bucharest which ended the war with Romania was to undermine morale in the Austrian Imperial and Royal Army. Besides for the peace treaties, Serbia had been defeated in 1915 and Italy had been almost defeated in 1917, meaning that most of the Austrian war aims had already achieved, and from the Austrian point of view, there was no more point in continuing the war. However, the Austro-Hungarian Empire was very much the junior partner in its alliance with Germany, and under strong German pressure Austria-Hungary had to continue the war, which caused serious morale problems in the Imperial and Royal Army by 1918. Within the Imperial and Royal Army, Germany was cursed as the "secret enemy" that had bullied the Austro-Hungarian Empire into continuing the war in order to achieve German war aims.

The preparatory artillery bombardment of Bulgarian and Central Powers positions for the
Battle of Dobro Pole began on 14 September. The following day, the French and Serbians attacked and captured their objective. On 18 September, the Greeks and the British attacked but were stopped with heavy losses by the Bulgarians in the
Battle of Doiran. The Franco-Serbian army continued advancing vigorously, and the next day, some Bulgarian units started surrendering positions without a fight, and the Bulgarian command ordered a retreat.
In the
official British government history of the Macedonian campaign,
Cyril Falls
Cyril Bentham Falls CBE (2 March 1888 – 23 April 1971) was a British military historian, journalist, and academic, noted for his works on the First World War. He was born in Ireland and spent most of his life in England.
Early life
Falls was ...
wrote a detailed analysis of the situation of the Bulgarian forces and the situation of the front. Although a breakthrough was achieved at Dobro Pole and the Allied forces continued their advance, the Bulgarian army was not routed and managed an orderly retreat. By 29 September (a day before Bulgaria exited World War I), Skopje fell, but a Bulgarian and German force had been ordered to try and retake it the next day; the number of Bulgarian prisoners-of-war in allied hands around that day was only
Another major factor contributed to the Bulgarian request for an armistice. A mass of retreating Bulgarian mutineers had converged on the railway centre of
Radomir in Bulgaria, from the capital city of
Sofia
Sofia is the Capital city, capital and List of cities and towns in Bulgaria, largest city of Bulgaria. It is situated in the Sofia Valley at the foot of the Vitosha mountain, in the western part of the country. The city is built west of the Is ...
. On 27 September, leaders of the
took control of these troops and proclaimed the overthrow of the monarchy and a Bulgarian republic. About rebellious troops threatened Sofia the next day. Under those chaotic circumstances, a Bulgarian delegation arrived in Thessaloniki to request an armistice. On 29 September, the Bulgarians were granted the
Armistice of Salonica by General d'Espèrey, ending their war. The Macedonian front ended at noon on 30 September 1918 when the ceasefire came into effect. The Soldiers' Uprising was finally put down by 2 October.
German Emperor
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 ...
, in his telegram to Bulgarian King
Ferdinand I, stated: "Disgraceful! 62,000 Serbs decided the war!"
On 29 September 1918, the
German Supreme Army Command informed Wilhelm II and the
Imperial Chancellor Count
Georg von Hertling
Georg Friedrich Karl Freiherr von Hertling, from 1914 Count von Hertling, (31 August 1843 – 4 January 1919) was a German politician of the Catholic Centre Party. He was foreign minister and minister president of Bavaria, then imperial chance ...
, that the military situation facing Germany was hopeless. Ferdinand I abdicated and went into exile on 3 October.
The British army headed east towards the European side of the Ottoman Empire as the French and Serbian forces continued north and
liberated Serbia, Albania and Montenegro. The British army neared
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 with no Ottoman forces capable of stopping it, the Ottoman government asked for an armistice (the
Armistice of Mudros
The Armistice of Mudros () ended hostilities in the Middle Eastern theatre between Ottoman Turkey and the Allies of World War I. It was signed on 30 October 1918 by the Ottoman Minister of Marine Affairs Rauf Bey and British Admiral Somerset ...
) on 26 October;
Enver Pasha
İsmâil Enver (; ; 23 November 1881 – 4 August 1922), better known as Enver Pasha, was an Ottoman Empire, Ottoman Turkish people, Turkish military officer, revolutionary, and Istanbul trials of 1919–1920, convicted war criminal who was a p ...
and his partners had fled several days earlier to Berlin. The Serbo-French army recaptured Serbia and overran several weak German divisions that tried to block its advance near
Niš
Niš (; sr-Cyrl, Ниш, ; names of European cities in different languages (M–P)#N, names in other languages), less often spelled in English as Nish, is the list of cities in Serbia, third largest city in Serbia and the administrative cente ...
. On 3 November, Austria-Hungary was forced to sign an armistice on the Italian front ending the war there. On 10 November, d'Espèrey's army crossed the
Danube
The Danube ( ; see also #Names and etymology, other names) is the List of rivers of Europe#Longest rivers, second-longest river in Europe, after the Volga in Russia. It flows through Central and Southeastern Europe, from the Black Forest sou ...
river and was poised to enter the heartland of
Hungary
Hungary is a landlocked country in Central Europe. Spanning much of the Pannonian Basin, Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia and ...
. At the request of the French General, Count
Mihály Károlyi
Count Mihály Ádám György Miklós Károlyi de Nagykároly (; ; or in short simple form: Michael Károlyi; 4 March 1875 – 19 March 1955) was a Hungarian politician who served as a leader of the short-lived and unrecognized First Hungarian Re ...
, leading the Hungarian government, came to Belgrade and signed another armistice, the
Armistice of Belgrade.
Memorials
*
Inter-Alliance Polykastro Memorial for the victory on the Macedonian Front, in
Latomi Kilkis.
* Memorials erected in the area include the
Doiran Memorial to the dead of the British Salonika army.
Legacy
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, ...
in his memoirs/history of the First World War, ''
The World Crisis'', assigned much importance to the defeat of Bulgaria in September 1918, which he saw as beginning a series of events that led to the defeat of Germany in November 1918, and which led him to place the operations in the Balkans as one of the decisive theaters of the war. The idea that the lands around the Mediterranean Sea were the weak point for the opposing side influenced Churchill's strategy in
World War Two
World War II or the Second World War (1 September 1939 – 2 September 1945) was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated, with many nations mobilisi ...
, where he consistently showed a preference for operations in the Mediterranean area as the supposed weak point in the
Axis powers
The Axis powers, originally called the Rome–Berlin Axis and also Rome–Berlin–Tokyo Axis, was the military coalition which initiated World War II and fought against the Allies of World War II, Allies. Its principal members were Nazi Ge ...
.
Gallery
Vojski vo Solun, Makedonski front.jpg, Armies in Thessaloniki, First World War
Makedonski front, borbena linija.jpg, Macedonian front, front line
Vojni;ki kamp, Makedonski front.jpg, Military camp near Thessaloniki, First World War
Rovovi, Makedonski front.jpg, Trenches, Macedonian front, World War I
File: Royal Fusiliers in trench Macedonia 1917 IWM Q 32896.jpg, British soldiers of the Royal Fusiliers
The Royal Fusiliers (City of London Regiment) was a line infantry regiment of the British Army in continuous existence for 283 years. It was known as the 7th Regiment of Foot until the Childers Reforms of 1881.
The regiment served in many war ...
in a trench
French Training Serbians on 58mm Mortar.jpg, Frenchman instructing Serbian in the use of a trench mortar, 1916–1917
Λατόμι Μνημείο.jpg, The Monument of the Alliance for the Split of the Macedonian Front, during the 94th anniversary, in Latomeio, Kilkis (constructed in an area donation of Christos Karathodoros)
Ζέιτενλικ - Συμμαχικά - panoramio.jpg, Zeitenlik, Allied cemetery in Thessaloniki
Thessaloniki (; ), also known as Thessalonica (), Saloniki, Salonika, or Salonica (), is the second-largest city in Greece (with slightly over one million inhabitants in its Thessaloniki metropolitan area, metropolitan area) and the capital cit ...
Annotations
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{{DEFAULTSORT:Macedonian Front
European theatre of World War I
Campaigns and theatres of World War I
Albania in World War I
Bulgaria in World War I
Greece in World War I
Serbia in World War I
Modern history of Greek Macedonia
Modern history of the Balkans
Vardar Macedonia (1912–1918)
Wars involving the Balkans
Military campaigns and theatres of World War I involving the Ottoman Empire
Battle honours of the King's Royal Rifle Corps
Thessaloniki in World War I
Alexander of Greece
Constantine I of Greece
Eleftherios Venizelos