Balkans theatre

Theatre of WWI

For the World War II campaign, see Balkans campaign (World War II).

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Balkans theatre

Part of the European theatre of World War I

Serbian troops during the opening of the war c. 1914
| Date| July 28, 1914 – November 11, 1918

|

Location|

Serbia, Montenegro, Albania, Greece, Bulgaria

Result|

* Allied Powers victory

* Treaty of Neuilly-sur-Seine
* Liberation of Serbia, Albania and Montenegro

Belligerents
Central Powers:

* Austria-Hungary
*  Bulgaria (from 1915)
*  Germany (from 1915)
* Ottoman Empire (1916–1917)

|  Allied Powers:

*  Serbia
*  Montenegro
*  France (from 1915)
*  United Kingdom (from 1915)
*  Italy (from 1915)
* Russian Empire (1916–1917)
*  Greece (from 1917)

Commanders and leaders

* Ferdinand I
* Nikola Zhekov
* Kliment Boyadzhiev
* Dimitar Geshov
* Georgi Todorov
* Stefan Nerezov
* Franz Joseph I
* Oskar Potiorek
* E. von Böhm-Ermolli
* Liborius von Frank
* H. K. von Kövessháza
* August von Mackensen
* Otto von Below
* Friedrich von Scholtz
* Enver Pasha
* Abdul Kerim Pasha

* Peter I
* Radomir Putnik
* Petar Bojović
* Živojin Mišić
* Stepa Stepanović
* Pavle Jurišić Šturm
* Nicholas I
* Janko Vukotić
* Maurice Sarrail
* Adolphe Guillaumat
* Louis F. d'Espèrey
* Prince Emanuele Filiberto
* Bryan Mahon
* George Milne
* Panagiotis Danglis

Strength

* 1,200,000[1]
* Unknown
* Unknown
* Unknown

* 707,343[1]
* 50,000[1]
* 350,000+[2]
* 404,207[3]
* 144,000
* 230,000[1]
* 17,884

* * *

* Total: 1,885,550+

Casualties and losses

* 267,000[4]
87,500 killed
152,930 wounded
27,029 missing/captured
* 300,000+[5][6]
* Unknown
* "a few thousand"[7]

|  Serbian campaign:

* 434,000[8][9]

* * *

Macedonian front:

* 20,000–40,000 casualties[10][11]
* 40,000 casualties[12]
* 26,207 casualties[13]
* 10,538 casualties[14][15]
* 27,000 casualties[16]
* Unknown

* v
* t
* e

Balkans theatre

Serbia

Serbian campaign (1914)

* 1st Belgrade
* Cer
* Srem
* Drina
* Kolubara

Serbian campaign (1915)

* 2nd Belgrade
* Morava
* Ovče Pole
* Kosovo
* Montenegro
* Mojkovac

Austro-Hungarian and Bulgarian occupation

* Toplica Uprising

* * *

Albania

* Great Retreat
* Bulgarian occupation of Albania
* French and Italian occupation of Southern Albania

* * *

Greece (National Schism)

* Fort Roupel
* Thessaloniki
* Görlitz
* Noemvriana
* Katerini
* Thessaly

* * *

Macedonian front

* Krivolak
* Kosturino
* 1st Doiran
* Florina
* Struma
* Monastir
* Malka Nidzhe
* Kaymakchalan
* 1st Crna Bend
* 2nd Monastir
* 2nd Doiran
* 2nd Crna Bend
* Skra-di-Legen
* Vardar
* Dobro Pole
* 3rd Doiran
* Liberation of Serbia
* Niš
* Radomir Rebellion

* v
* t
* e

Theatres of World War I

Europe

* Western Front
* Eastern Front
* Romania
* Italy
* Balkans
* Serbia
* Macedonia

Middle East

* Caucasus
* Gallipoli
* Sinai & Palestine
* Mesopotamia
* Persia
* Hejaz & Levant
* South Arabia
* Central Arabia

Africa

* South West Africa
* South Africa
* Togoland
* Cameroon
* East Africa
* North Africa
* Morocco
* Libya
* Darfur
* Somaliland
* Ethiopia

Asia-Pacific

* Tsingtao
* Samoa
* New Guinea
* North-West Frontier
* Central Asia

Naval theatres

* U-boat
* Atlantic
* Mediterranean
* Adriatic

Air theatres

* Britain
* Constantinople

The Balkans theatre or Balkan campaign was a theatre of World War I fought between the Central Powers (Austria-Hungary, Bulgaria, Germany and the Ottoman Empire) and the Allies (Serbia, Montenegro, France, the United Kingdom, Russia, Italy, and later, Greece).

The offensive began in 1914 with three failed Austro-Hungarian offensives into Serbia. A new attempt a year later by the combined forces of Austria-Hungary, Germany, and Bulgaria led to the conquest and occupation of Serbia and Montenegro.[17] The Serbian military did not surrender, retreating through the mountains of Albania and evacuated to Corfu before reforming in Salonika a few months later. On the Macedonian front, the Royal Serbian Army joined the Franco-British Allied Army of the Orient and fought a protracted trench war against Bulgarian and German forces. The Allied army presence in Greece resulted in the National Schism on whether Greece should join the Allies or remain neutral, which would benefit the Central Powers. Greece eventually joined the Allied Powers in 1917. In September 1918, the Vardar Offensive had broken through the Bulgarian lines, forcing them to surrender. Serbia, Albania and Montenegro's liberation soon followed.

## Overview

[edit]

The prime cause of the war was hostility between Serbia and Austria-Hungary. Serbia held out against Austria-Hungary for over a year before being defeated in late 1915 during the Serbian campaign.

Dalmatia was a strategic region during the war that Italy and Serbia intended to seize from Austria-Hungary. Italy entered the war upon agreeing to the 1915 Treaty of London, which promised them a substantial portion of the territory. However, the nation was granted only a small part of Dalmatia in the 1919 Treaty of Versailles, leading to discontent among the Italian populace. This resentment, coupled with a desire to restore national pride, provided fertile ground for the emergence of fascist ideology under the leadership of Benito Mussolini. Mussolini's promise to rejuvenate Italy and return it to a position of power resonated with many Italians contributing to the rise of his "Fasces of Combat" in the country.

During World War I, the retreating Serbian troops fled to Albania, prompting the Central Powers to invade Albania. To aid the Serbian forces, Italian transport ships in the Adriatic Sea helped evacuate them to Corfu and other Greek islands before being relocated to Thessaloniki. Meanwhile, the Allies landed in neutral Greece and formed the Macedonian front. In 1917, Greece joined the war on the Allies side, and the multinational Allied Army of the Orient, stationed in northern Greece, launched an offensive in 1918. The offensive resulted in Bulgaria seeking a peace treaty, the recapture of Serbia, and a halt only at the border of Hungary in November 1918.

## Serbian–Montenegrin campaign

[edit]

Main articles: Serbian campaign of World War I and Montenegrin Campaign of World War I

The Serbian forces defended against the larger Austro-Hungarian Army due to a Russian invasion from the north. In 1915, Austria-Hungary placed additional soldiers on the southern front and brought Bulgaria as an ally for the Central Powers.

Soon, the Serbian military was attacked from the north and the east, forcing a retreat to Greece. Despite the loss, the retreat was successful, and the Serbian military remained operational in Greece with a newly-established base.

## Italian campaign

[edit]

Main article: Albania during World War I

Italian soldiers in Vlorë, Albania during World War I. The tricolour flag of Italy, bearing the Savoy royal shield, is shown hanging alongside an Albanian flag from the balcony of the Italian prefecture headquarters.

Before direct intervention in the war, Italy had occupied the port of Vlorë in Albania in December 1914.[18] Upon entering the war, Italy spread its occupation to the region of southern Albania beginning in the Autumn of 1916.[18] Italian forces in 1916 recruited Albanian irregulars to serve alongside them.[18] Italy, with the permission of Allied command, occupied Northern Epirus on August 23, 1916, forcing the Greek military to withdraw its occupation forces in the area.[18]

In June 1917, Italy proclaimed central and southern Albania to be a protectorate of Italy. Northern Albania was allocated to the states of Serbia and Montenegro.[18] By October 31, 1918, French and Italian forces had expelled the Austro-Hungarian military from Albania.[18]

Dalmatia was a strategic region during World War I that Italy and Serbia intended to seize from Austria-Hungary. Italy joined the Allies in 1915 upon agreeing to the London Pact, which guaranteed it the right to annex a large portion of Dalmatia in exchange for Italy's participation on the Allied side. From November 5 to 6, 1918, Italian forces were reported to have reached Lissa, Lagosta, Sebenico, and other localities on the Dalmatian coast.[19]

By the end of hostilities in November 1918, the Italian military had seized control of the entire portion of Dalmatia that had been guaranteed to Italy by the London Pact and by the 17th had captured Fiume as well.[20] In 1918, Admiral Enrico Millo declared himself Italy's Governor of Dalmatia.[20] The famous nationalist Gabriele d'Annunzio supported the seizure of Dalmatia and proceeded to Zadar in an Italian warship in December 1918.[21]

## Bulgaria

[edit]

Main article: Bulgaria during World War I

Bulgaria during World War I.

In the aftermath of the Balkan Wars, Bulgarian opinion turned against Russia and the Western powers, whom the Bulgarians felt had done nothing to help them.[citation needed] Russia blamed Bulgaria for breaking up the alliance it had forged and for starting the Second Balkan War against its former allies and now looked to Serbia as a more reliable Slavic ally against Austria-Hungary.[22] The Bulgarian government aligned itself with Germany and Austria-Hungary, even though this meant also becoming an ally of the Ottomans, Bulgaria's traditional enemy. Bulgaria could no longer hold claims against the Ottomans, but Serbia, Greece, and Romania (allies of Britain and France) still held lands the Bulgarians perceived as Bulgarian.

Bulgaria, recuperating from the Balkan Wars, sat out the first year of World War I. When Germany promised Bulgaria all of Serbian Macedonia, parts of northeastern Serbia, as well as a new loan of 200,000,000 gold francs,[23] Bulgaria declared war on Serbia in October 1915. Britain, France and Italy then declared war on Bulgaria.

Although Bulgaria, allied with Germany and Austria-Hungary, won military victories against Serbia and Romania: occupying much of Southern Serbia (taking Nish, Serbia's war capital on November 5), advancing into Greek Macedonia. They were assisted by the IMRO who joined the Bulgarian army as the 11th Macedonian Infantry Division. Bulgaria later took Dobruja from the Romanians in September 1916, the war soon became unpopular with the majority of Bulgarian people, who had suffered enormous economic hardship. The Russian Revolution of February 1917 had a significant effect in Bulgaria, spreading antiwar and anti-monarchist sentiment among the troops and in the cities.

In September 1918, a collective group of Serbian and Allied forces broke through on the Macedonian front in the Vardar Offensive. While Bulgarian forces stopped them in Dojran, Tsar Ferdinand was forced to sue for peace.

To head off the revolutionaries, Ferdinand abdicated in favour of his son Boris III. The revolutionaries were suppressed successfully, and their forces disbanded. Under the Treaty of Neuilly (November 1919), Bulgaria lost its Aegean coastline in favour of the Principal Allied and Associated Powers (transferred later by them to Greece) and nearly all of its Macedonian territory to the new state of Yugoslavia, and had to give Dobruja back to the Romanians (see also Dobruja, Western Outlands, Western Thrace).

The arrival of Venizelos to Athens with French ships, June 1917, following French capture Thessaly

## National Schism

[edit]

Main article: National Schism

Following the start of World War I the Kingdom of Greece was politically split between joining the war and being neutral, led by the Pro-Entente Venizelos and the pro-Central Powers King Constantine. Following the conquest of Serbia Venizelos allowed the Allies into Thessaloniki leading to the creation of the Macedonian front. Following this Venizelos set up the Provisional Government of National Defence in Allied-controlled North Greece.[24] The Allies and the Provisional Government of National Defence clashed during the Noemvriana.

The inability of the Kingdom of Greece to join World War I against the Central Powers lead the United Kingdom and France to recognize the Provisional Government of National Defence as the legitimate government of Greece, and blockaded Greece. In June, 1917 the French captured Thessaly and King Constantine fled Greece and Venizelos re-entered Athens, declaring war on the Central Powers in July.[24]

## Macedonian Front

[edit]

Main article: Macedonian Front

In 1915, the Austro-Hungarians gained the support of Germany and allied with Bulgaria. Serbian forces were attacked from both north and south, forcing them to retreat through Montenegro and Albania, with only 155,000 Serbs, mainly soldiers, reaching the coast of the Adriatic Sea and evacuating to Greece by Allied ships.

The Macedonian front stabilized roughly around the Greek border after the intervention of a Franco-British-Italian force that had landed in Salonica. The German generals had not let the Bulgarian army advance toward Salonica because they hoped to persuade the Greeks to join the Central Powers.

In 1918, after a prolonged build-up, the Allies, under French General Franchet d'Esperey, led a combined French, Serbian, Greek and British army attack out of Greece. His initial victories convinced the Bulgarian government to sue for peace. He then attacked the north and defeated the German and Austro-Hungarian forces that tried to halt his offensive.

By October 1918, having recaptured all of Serbia his forces prepared to invade Hungary proper until the Hungarian leadership offered to surrender in November 1918, halting the offensive.

## Results

[edit]

The French and British each kept six divisions on the Greek frontier from 1916 to late 1918. The French and British went to Greece to help Serbia, but with Serbia's conquest in the fall of 1915, their continued presence there did not have an effect, so they relocated their forces to the Western Front.

In mid-1918, led by General Franchet d'Esperey, those forces were added to in order to conduct a major offensive on the south flank of the Central Powers (8 French divisions, 6 British divisions, 1 Italian division, 12 Serbian divisions).[25] After the successful offensive launched on September 10, 1918, they freed Belgrade, forcing Bulgaria to an armistice on September 29, threatening Austria-Hungary (which accepted an armistice on November 4, 1918) and the German political leadership.

The historian John Keegan argued that "the installation of a violently nationalist and anti-Turkish government in Athens led to Greek mobilization in the cause of the "Great Idea" \- the recovery of the Greek Empire in the east - which would complicate the Allied effort to resettle the peace of Europe for years after the war ended."[26]

## References

[edit]

1. ^ a b c d Tucker, Spencer C.; Wood, Laura Matysek; Murphy, Justin D. (1996). Spencer Tucker. The European powers in the First World War: an encyclopedia. Taylor & Francis, 1996, pg. 173. Taylor & Francis. ISBN 9780815303992. Retrieved 30 November 2014.
2. ^ "Reporters - Reporters: How the Salonica front led to victory in WWI". France 24. Nov 9, 2018. Retrieved Jan 19, 2021.
3. ^ Great Britain. War Office (27 February 2023). "Statistics of the military effort of the British Empire during the Great War, 1914–1920, p. 739". London H.M. Stationery Off. Retrieved 27 February 2023 – via Internet Archive.
4. ^ Military Casualties-World War-Estimated," Statistics Branch, GS, War Department, February 25, 1924; cited in World War I: People, Politics, and Power, published by Britannica Educational Publishing (2010) Page 219.
5. ^ Lyon 2015, p. 235.
6. ^ Spencer Tucker, "Encyclopedia of World War I"(2005) pg 1077, ISBN 1851094202
7. ^ "Turkey in the First World War - Macedonia". Archived from the original on 2015-11-18. Retrieved 2015-05-19. turkeyswar, Campaigns, Macedonia front.
8. ^ Urlanis, Boris (1971). Wars and Population. Moscow Pages 66, 79, 83, 85, 160, 171, and 268.
9. ^ Statistics of the Military Effort of the British Empire During the Great War 1914–1920, The War Office, P.353.
10. ^ Until the Armistice of 11 November 1918. Max Schiavon. Le Front d'Orient. Des Dardanelles à la victoire finale. Tallandier. 2014. p. 114, 368.
11. ^ "Reporters: How the Salonica Front led to victory in WWI". www.france24.com. 9 November 2018.
12. ^ As mentioned in the sources above about Serbian military casualties in World War I, they numbered approximately 481,000 in total, including 278,000 dead from all causes (including POWs), 133,000 wounded, and 70,000 living POWs. Of these 481,000, some 434,000 suffered in the earlier Serbian offensive. Most of the rest were taken on the Macedonian front following the evacuation of the Serbian Army.
13. ^ T. J. Mitchell and G.M. Smith. "Medical Services: Casualties and Medical Statistics of the Great War." From the "Official History of the Great War." Pages 190-191. Breakdown: 2,797 were killed, 1,299 died of wounds, 3,744 died of disease, 2,778 were missing/captured, 16,888 were wounded (minus DOW), 116,190 evacuated sick (34,726 to the UK, 81,428 elsewhere) of whom an unknown proportion returned to duty later. A total of 481,262 were hospitalized for sickness overall.
14. ^ Ministero della Difesa: L’Esercito italiano nella Grande Guerra (1915-1918), vol. VII: Le operazioni fuori del territorio nazionale: Albania, Macedonia, Medio Oriente, t. 3° bis: documenti, Rome 1981, Parte Prima, doc. 77, p. 173 and Parte Seconda, doc. 78, p. 351; Mortara, La salute pubblica in Italia 1925, p. 37.
15. ^ Losses are given as follows for 1916 to 1918. Macedonia: 8,324, including 2,971 dead or missing and 5,353 injured. Albania: 2,214, including 298 dead, 1,069 wounded, and 847 missing.
16. ^ Military Casualties-World War-Estimated," Statistics Branch, GS, War Department, February 25, 1924; cited in World War I: People, Politics, and Power, published by Britannica Educational Publishing (2010) Page 219. Total casualties for Greece were 27,000 (killed and died 5,000; wounded 21,000; prisoners and missing 1,000)
17. ^ "Kitchener in east worries the Kaiser". Google Books. The Morning Leader. November 18, 1915. Retrieved March 19, 2024. "There, as a result of his peremptory orders, the Austro-Germans and Bulgarians, reinforced by the Turks have begun a great effort to crush the Serbians and destroy the Franco-British forces before the latter's numbers are augmented by the troops landing daily at Saloniki"
18. ^ a b c d e f Nigel Thomas. Armies in the Balkans 1914-18. Osprey Publishing, 2001. Pp. 17.
19. ^ Giuseppe Praga, Franco Luxardo. History of Dalmatia. Giardini, 1993. Pp. 281.
20. ^ a b Paul O'Brien. Mussolini in the First World War: the Journalist, the Soldier, the Fascist. Oxford, England, UK; New York, New York, US: Berg, 2005. Pp. 17.
21. ^ A. Rossi. The Rise of Italian Fascism: 1918-1922. New York, New York, USA: Routledge, 2010, p. 47.
22. ^ Chary 2011, p. 50.
23. ^ Luckau 1971, p. 278.
24. ^ a b Leon 1974, pp. xiv, 521
25. ^ Bernard Schnetzler, Les erreurs stratégiques pendant la Première Guerre Mondiale, Economica, 2011 ISBN 2717852255
26. ^ Keegan, John (2000). World War I. Vintage. p. 307\. ISBN 0375700455.

## Sources

[edit]

* Chary, F.B. (2011). The History of Bulgaria. Greenwood histories of the modern nations. Greenwood. ISBN 978-0-313-38446-2.
* Dutton, D. J. (January 1979). "The Balkan Campaign and French War Aims in the Great War". The English Historical Review. 94 (370): 97–113\. doi:10.1093/ehr/XCIV.CCCLXX.97. JSTOR 567160.
* Fried, M. (2014). Austro-Hungarian War Aims in the Balkans during World War I. Springer. ISBN 978-1-137-35901-8.
* Leon, George B. (1974). Greece and the Great Powers, 1914-1917. Institute for Balkan Studies.
* Luckau, A. (1971). The German Delegation at the Paris Peace Conference. H. Fertig. ISBN 978-0-86527-078-7.
* Lyon, James (2015) [1995]. Serbia and the Balkan Front, 1914: The Outbreak of the Great War. Bloomsbury Publishing. ISBN 978-1-4725-8005-4.
* Mitrović, Andrej (2007). Serbia's Great War, 1914–1918. London: Hurst. ISBN 978-1-55753-477-4.
* Nigel Thomas; Dusan Babac (2012). Armies in the Balkans 1914–18. Bloomsbury Publishing. ISBN 978-1-78096-735-6.
* Omiridis Skylitzes, Aristeidis (1961). Ο Ελληνικός Στρατός κατά τον Πρώτον Παγκόσμιον Πόλεμον, Τόμος Δεύτερος, Η Συμμετοχή της Ελλάδος εις τον Πόλεμον 1918 [Hellenic Army During the First World War 1914–1918: Hellenic Participation in the War 1918] (in Greek). Vol. II. Athens: Hellenic Army History Department.
* Sfika-Theodosiou, A. (1995). "The Italian presence on the Balkan Front (1915-1918)". Balkan Studies. 36 (1): 69–82.

## External links

[edit]

Wikimedia Commons has media related to Balkans theatre of World War I.

* v
* t
* e

Balkan Wars

Background|

* Nationalism in the Ottoman Empire
* Albanian
* Aromanian
* Bulgarian
* Greek
* Romanian
* Serbian
* Congress of Berlin
* Annexation of Eastern Rumelia
* Serbo-Bulgarian War
* Greco-Turkish War of 1897
* Cretan State
* IMRO & Ilinden–Preobrazhenie Uprising
* Macedonian Struggle
* Young Turk Revolution
* Bosnian Crisis
* Bulgarian Independence
* 31 March Incident
* Goudi coup
* Italo-Turkish War
* Albanian revolt of 1912
* Balkan League

First Balkan War

Battles|

* Sarantaporo
* Kardzhali
* Pente Pigadia
* Sorovich
* Kumanovo
* Kirk Kilisse
* Scutari
* Lule Burgas
* Yenidje
* Adrianople
* Prilep
* Himara
* Monastir
* First Çatalca
* Kaliakra
* Merhamli
* Driskos
* Elli
* Korytsa
* Lemnos
* Bulair
* Şarköy
* Bizani
* Second Çatalca

Diplomacy and politics|

* London Conference
* Albanian Independence
* 1913 Ottoman coup d'état
* Treaty of London

Second Balkan War

Battles|

* Kilkis–Lachanas
* Doiran
* Bregalnica
* Knjaževac
* Kalimanci
* Kresna Gorge
* Southern Dobruja
* Romanian landings in Bulgaria
* Vidin
* Pirot

Diplomacy and politics|

* Greek–Serbian Alliance
* Provisional Government of Western Thrace
* Treaty of Bucharest
* Treaty of Constantinople
* Treaty of Athens

Other|

* 1913 Romanian Army cholera outbreak

General

Aftermath|

* Autonomy of Northern Epirus
* Greco-Turkish crisis of 1914
* Sarajevo Assassination and World War I
* Ottoman–Bulgarian alliance
* Balkans campaign of WWI
* Serbian campaign
* Macedonian front

Atrocities|

* Carnegie Commission
* Massacres of Albanians
* Bulgarians deportation program
* Initial phase of the Greek genocide
* Places burned down

Participants|

* Bulgaria
* Ferdinand I
* Ivan Geshov
* Stoyan Danev
* Mihail Savov
* Ivan Fichev
* Vasil Kutinchev
* Nikola Ivanov
* Radko Dimitriev
* Stiliyan Kovachev
* Georgi Todorov
* Greece
* George I
* Constantine I
* Eleftherios Venizelos
* Panagiotis Danglis
* Pavlos Kountouriotis
* Konstantinos Sapountzakis
* Viktor Dousmanis
* Montenegro
* Nicholas I
* Crown Prince Danilo
* Janko Vukotić
* Ottoman Empire
* Mehmed V
* Nazim Pasha
* Zeki Pasha
* Esad Pasha
* Kölemen Abdullah Pasha
* Ali Rıza Pasha
* Hasan Tahsin Pasha
* Enver Bey
* Ahmed Izzet Pasha
* Romania
* Carol I
* Crown Prince Ferdinand
* Alexandru Averescu
* Serbia
* Peter I
* Crown Prince Alexander
* Radomir Putnik
* Petar Bojović
* Stepa Stepanović
* Božidar Janković
* Other Balkan states: Albania (Ismail Kemal)

* Category

* v
* t
* e

World War I

* Outline
* Military engagements
* Aftermath
* Economic history
* Geography
* Historiography
* Home fronts
* Memorials
* Opposition
* Popular culture
* Propaganda
* Puppet states
* Technology

Theatres|

| European|

* Balkans
* Serbia
* Western Front
* Eastern Front
* Romania
* Italian Front

|

Middle Eastern|

* Gallipoli
* Sinai and Palestine
* Caucasus
* Persia
* Mesopotamia
* Hejaz & Levant

African|

* South West
* East
* Kamerun
* Togoland
* North

Asian and Pacific|

* Tsingtao
* German Samoa
* German New Guinea

Naval warfare|

* U-boat campaign
* North Atlantic
* Mediterranean

Principal
participants

| Entente Powers|

* Leaders
* Belgium
* Brazil
* China
* France
* French Empire
* Greece
* Hejaz
* Italy
* Japan
* Empire of Japan
* Montenegro
* Portuguese Empire
* Romania
* Russia
* Russian Empire
* Russian Republic
* Serbia
* Siam
* United Kingdom
* British Empire
* United States

|

Central Powers|

* Leaders
* Germany
* Austria-Hungary
* Ottoman Empire
* Bulgaria
* Senussi
* South African Republic
* Darfur

Timeline|

| Pre-War conflicts|

* Franco-Prussian War (1870–71)
* Scramble for Africa (1880–1914)
* Russo-Japanese War (1905)
* Tangier Crisis (1905–06)
* Bosnian Crisis (1908–09)
* Agadir Crisis (1911)
* Italo-Turkish War (1911–12)
* First Balkan War (1912–13)
* Second Balkan War (1913)

|

Prelude|

* Origins
* Historiography
* Sarajevo assassination
* Anti-Serb riots in Sarajevo
* July Crisis

1914|

* German invasion of Belgium
* Battle of the Frontiers
* Battle of Cer
* Battle of Galicia
* Russian invasion of East Prussia
* Battle of Tannenberg
* Siege of Tsingtao
* First Battle of the Masurian Lakes
* Battle of Grand Couronné
* First Battle of the Marne
* Siege of Przemyśl
* Race to the Sea
* First Battle of Ypres
* Black Sea raid
* Battle of Kolubara
* Battle of Sarikamish
* Christmas truce

1915|

* Second Battle of the Masurian Lakes
* Battle of Łomża
* Second Battle of Ypres
* Sinking of the RMS Lusitania
* Battle of Gallipoli
* Second Battle of Artois
* Battles of the Isonzo
* Gorlice–Tarnów offensive
* Great Retreat
* Bug-Narew Offensive
* Siege of Novogeorgievsk
* Vistula–Bug offensive
* Second Battle of Champagne
* Kosovo offensive
* Siege of Kut
* Battle of Loos
* Battle of Robat Karim

1916|

* Erzurum offensive
* Battle of Verdun
* Lake Naroch offensive
* Battle of Asiago
* Battle of Jutland
* Battle of the Somme
* first day
* Brusilov offensive
* Baranovichi offensive
* Battle of Romani
* Monastir offensive
* Battle of Transylvania

1917|

* Capture of Baghdad
* February Revolution
* Zimmermann telegram
* Second battle of Arras
* Second battle of the Aisne
* Kerensky offensive
* Battle of Mărăști
* Third Battle of Ypres (Passchendaele)
* Battle of Mărășești
* Third Battle of Oituz
* Battle of Caporetto
* Southern Palestine offensive
* October Revolution
* Battle of La Malmaison
* Battle of Cambrai
* Armistice of Focșani
* Armistice between Russia and the Central Powers

1918|

* Operation Faustschlag
* Treaty of Brest-Litovsk
* German spring offensive
* Zeebrugge Raid
* Treaty of Bucharest of 1918
* Battle of Goychay
* Second Battle of the Piave River
* Second Battle of the Marne
* Hundred Days Offensive
* Vardar offensive
* Battle of Megiddo
* Third Transjordan attack
* Meuse–Argonne offensive
* Battle of Vittorio Veneto
* Armistice of Salonica
* Armistice of Mudros
* Armistice of Villa Giusti
* Second Romanian campaign
* Armistice with Germany
* Naval Victory Bulletin
* Armistice of Belgrade

Co-belligerent conflicts|

* Somaliland campaign (1900–1920)
* Mexican Revolution (1910–1920)
* Maritz rebellion (1914–15)
* Muscat rebellion (1913–1920)
* Zaian War (1914–1921)
* Kurdish rebellions (1914–1917)
* Ovambo Uprising (1914–1917)
* Kelantan rebellion (1915)
* Senussi campaign (1915–1917)
* Volta-Bani War (1915–1917)
* National Protection War
* Arab Revolt (1916–1918)
* Central Asian Revolt (1916–17)
* Invasion of Darfur (1916)
* Easter Rising (1916)
* Kaocen revolt (1916–17)
* Russian Revolution (1917)
* Finnish Civil War (1918)

Post-War conflicts|

* Russian Civil War (1917–1921)
* Ukrainian–Soviet War (1917–1921)
* Armenian–Azerbaijani War (1918–1920)
* Armeno-Georgian War (1918)
* German Revolution (1918–19)
* Revolutions and interventions in Hungary (1918–1920)
* Hungarian–Romanian War (1918–19)
* Greater Poland Uprising (1918–19)
* Estonian War of Independence (1918–1920)
* Latvian War of Independence (1918–1920)
* Lithuanian Wars of Independence (1918–1920)
* Polish–Ukrainian War (1918–19)
* Third Anglo-Afghan War (1919)
* Egyptian Revolution (1919)
* Polish–Lithuanian War (1919–1920)
* Polish–Soviet War (1919–1921)
* Irish War of Independence (1919–1921)
* Turkish War of Independence
* Anglo-Turkish War (1918–1923)
* Franco-Turkish War (1918–1921)
* Greco-Turkish War (1919–1922)
* Turkish–Armenian War (1920)
* Iraqi Revolt (1920)
* Vlora War (1920)
* Franco-Syrian War (1920)
* Soviet–Georgian War (1921)

Aspects|

| Warfare|

* Aviation
* Strategic bombing
* Chemical weapons
* Cryptography
* Horses
* Logistics
* Naval warfare
* Convoy system
* Trench warfare

| Conscription|

* Australia
* Canada
* Ottoman Empire
* United Kingdom
* Ireland
* United States

|

Casualties /
Civilian impact

* British casualties
* Parliamentarians
* Ottoman casualties
* Sports
* Rugby
* Olympians

| Disease|

* 1899–1923 cholera pandemic
* 1915 typhus epidemic in Serbia
* Spanish flu

|

Occupations|

* Austro-Hungarian occupations
* Serbia
* Montenegro
* Bulgarian occupations
* Albania
* Serbia
* German occupations
* Belgium
* Luxembourg
* Northeast France
* Ober Ost
* Occupied Enemy Territory Administration
* Russian occupations
* Eastern Galicia
* Western Armenia

POWs|

* Germans
* in the United States
* Italians
* POW locations
* Canada
* Germany / camps
* Switzerland

Refugees|

* Belgian refugees
* Netherlands
* United Kingdom

War crimes|

* Allied blockades
* Eastern Mediterranean
* Mount Lebanon famine
* Germany
* Deportations from East Prussia
* Destruction of Kalisz
* Sack of Dinant
* Late Ottoman genocides
* Armenian genocide
* Assyrian genocide
* Pontic Greek genocide
* Rape of Belgium
* Urkun (Kyrgyzstan)
* Massacres of Albanians
* Internment of Ukrainian Canadians

Diplomacy

| Entry into the war|

* Austria-Hungary
* France
* Germany
* Italy
* Japan
* Ottoman Empire
* Russia
* United Kingdom
* United States

|

Declarations of war|

* Austria-Hungary against Serbia
* UK against Germany
* Ottomans against the Triple Entente
* Jihad
* USA against Germany
* USA against Austria-Hungary

Agreements|

* Constantinople Agreement
* Treaty of London
* Damascus Protocol
* Bulgaria–Germany treaty
* Treaty of Darin
* Sykes–Picot Agreement
* Sazonov–Paléologue Agreement
* Paris Economy Pact
* Treaty of Bucharest
* Agreement of Saint-Jean-de-Maurienne

Peace treaties

* Modus vivendi of Acroma
* Treaties of Brest-Litovsk
* Russia–Central Powers
* Ukraine–Central Powers
* Treaty of Bucharest
* Paris Peace Conference
* Treaty of Versailles
* Treaty of St. Germain
* Treaty of Neuilly
* Treaty of Trianon
* Treaty of Sèvres
* Treaty of Lausanne

Other|

* Arrest of a Suspect in Sarajevo
* Mutilated victory
* The Golden Virgin
* They shall not pass

* Category

* v
* t
* e

Bulgaria during World War I

| Prelude  | South-western front
Serbian campaign, Macedonian front | Romanian front • Outcome • Others  | Important persons

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Balkan Wars

1912–1913

* First Balkan War

1913

* Treaty of London
* Second Balkan War
* Treaty of Bucharest
* Treaty of Constantinople

Neutrality

1914

* Ottoman–Bulgarian alliance

1915

* Negotiations of Bulgaria with the Central Powers and the Entente
* Bulgarian–German treaty
* Secret Bulgarian–German agreement
* Military convention between Germany, Austria-Hungary and Bulgaria
* Bulgarian–Ottoman convention
* Mobilization

Commanders

Bulgaria

Nikola Zhekov • Kliment Boyadzhiev • Dimitar Geshov • Georgi Todorov • Ivan Lukov • Stefan Nerezov • Vladimir Vazov

Entente:

Serbia: Radomir Putnik • Živojin Mišić • Stepa Stepanović • Petar Bojović • Pavle Jurišić Šturm;
France: Maurice Sarrail • Adolphe Guillaumat • Louis Franchet d'Espèrey;
United Kingdom: Bryan Mahon • George Milne;
Kingdom of Greece: Panagiotis Danglis

Field Armies

* + Eleventh Army
* First Army
* Second Army
* Fourth Army

Battles

1915

Morava Offensive • Ovče Pole Offensive • Kosovo offensive (1915)  • Battle of Krivolak

1916

First battle of Doiran • Battle of Florina (Lerin) • Struma operation • Monastir offensive

1917

Second battle of Doiran • 2nd Crna Bend • Second battle of Monastir

1918

Battle of Skra-di-Legen • Battle of Dobro Pole • Third battle of Doiran

Commanders

Bulgaria

Nikola Zhekov • Panteley Kiselov • Stefan Toshev • Todor Kantardzhiev • Ivan Kolev

Entente:

Romania: Constantin Prezan • Alexandru Averescu;
Russia: Andrei Zayonchkovski • Vladimir Sakharov

Field Armies

* Third Army

Battles

1916

Battle of Turtucaia • Battle of Bazargic • First Cobadin • Flămânda Offensive • Second Cobadin • Battle of Bucharest

Outcome

1918 Treaty of Brest-Litovsk • Armistice of Focșani • Treaty of Bucharest • Protocol of Berlin

Outcome

* Armistice of Salonica
* Radomir Rebellion
* Treaty of Neuilly-sur-Seine

Others

* Bulgarian administration in Kosovo
* Anti-military propaganda

* Ferdinand
* Vasil Radoslavov
* Aleksandar Malinov
* Aleksandar Stamboliyski
* Aleksandar Protogerov
* August von Mackensen
* Boris Drangov
* Vladimir Vazov
* Georgi Todorov (general)
* Ivan Kolev
* Kliment Boyadzhiev
* Dimitar Geshov
* Ivan Lukov
* Konstantin Zhostov
* Krastyu Zlatarev
* Nikola Zhekov
* Panteley Kiselov
* Stefan Toshev
* Stefan Nerezov
* Todor Kantardzhiev

Authority control databases

National|

* United States
* Israel

Other|

* Yale LUX

*[c.]: circa
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