December 1913 = Northern Epirus is given to Albania

1914
February 1914 = Greek military forces withdraw from northern Eprius.
March 1914 = Armed conflict between the Moslem Albania army and Christain factions in Eprius. An Albanian force (700) were defeated by Epriot forces at Vouno.
May 1914 = Northern Eprius is declared an autonomous region by the Corfu Protocol.
June 1914 = Epriot troops liberate Korytsa and Moschopolis
September 13 1914 = Epriot (170) troops are defeated by Albanians (1500)
October 10 1914 = Greek army with the support of the Allies (except Italy) occupy the territory of northern Eprius

1915

September 1915 = The Greek Army is official mobilized
October 10 1915 = Anglo-French expedition lands a Salilonika in Thessaly. The king forces the Prime Minister to resign and insists that Greece remain neutral.

1916

January 1916 = Allies occupy and use Corfu as a staging area for exiled Serbian troops.
May 1916 = A key Greek fort in Macedonia surrendered to a German-Bulgarian force.
August 1916 = The Greek Corps defending Macedonia surrendered (though neutral) to a German-Bulgarian force. The Greeks were interned in Germany. The Central powers now controlled Macedonia
August 1916 = Italy now an Allied power forces Greece (still neutral) to evacuate northern Eprius. Italy expands its control over all of Albania and Eprius.
September 1916 = A pro-Allied Greek government is formed in Thessaly under Venizelos. Now Greece has two governments. The Pro-Allied government declared an unofficial War on the Central Powers, then raised an Army called Venizeloists. These troops were raised to fight the Bulgarians in occupied Macedonia.
November 1916 = French attempts to seize Athens failed (see Key battles section) The Allied navies begin a blockade of Greek Ports and force a Greek withdrawal from the Peloponnese region.

1917

April-May 1017 = Greek Venizeloists units conduct offensive operations against the Bulgarians. See the Key battles Section for more details.
May 1917 = French pressure forces the Greek King Constantine to abdicate and go into exile in Switzerland.
June 1917 = The Official Greek Government declares war on the Central Powers.

1918

May 1918 = Greek Offense against the Bulgarians. See the Battle of Skra de Legen in the Key battles Section for more details.
September 1918 = Further operations by the Greek against Bulgarian positions in Macedonia. See the Key battles Section for more detail.
September 1918 = A truce ended most major hostilities between the Bulgarians and Greeks.

1919

January 1919 = Greek troops land in Southern Russia to assist the Allies (French and Roumanian) and Russian ‘White' armies.
January-March 1919 = Greek units involved in heavy fighting in Russia. See Key battles section for more details.
May-June 1919 = Greek troops in Russia begin to be replaced by Roumanian troops. The Greek forces are transferred to fight the Turks in Asia Minor.
May 1919 = Based on the Truce agreements with the Ottomans, Greece is given control over a large area around Smyrna in Asia Minor. Greek troops begin to land in Smyrna.
June 1919-June 1920 = Greek occupy several key towns in their zone of occupation. Some Greek units are involved in skirmishes with unorganized hostile Turkish troops.

1920-1922

April-May 1920 = French troops withdraw from Western Thrace and are replaced by Greek troops.
March 1921 = Greek troops launch major operations to capture and/or consolidate territory in Asia Minor
July 1921 = Major Greek operations are conducted to crush Kermalist forces fail.
August 1921 = Major Greek operations to capture Ankara fails to capture the city
September 1921 = Greek Forces shift from Offensive operations to more defensive operations. They begin a slow process of withdrawal from Turkish territory in the face of growing Kermalist strength.
September 1922 = The Greeks withdraw from Smyrna and Asia Minor

Greece During the Era of the Great War

Introduction
Political Background
Chronology of Key Events 1913-1922
Key Battles