The Third Battle of Doiran sees the Bulgarians temporarily halt the Allied advance.
The Allies launch the Vardar Offensive, the decisive attack against the Bulgarians on the Salonika front.
The Second Battle of Doiran on the Salonika front ends in a Bulgarian victory over the Allies.
The British capture Karajakois (now Monokklisia in northern Greece) from the Bulgarians on the Salonika front.
An Allied offensive against the Bulgarians at Monastir (now Bitola in the Republic of Macedonia) ends in limited gains.
The First Battle of Doiran on the Salonika front ends in a Bulgarian victory over the Allies.
The Mediterranean island of Corfu is occupied by the Allies to receive the evacuated Serbian Army.
The Battle of Kosturino on the Salonika front ends in a Bulgarian victory over the Allies.
The Serbians are defeated by the invading Central Powers and remnants of their army are evacuated by Allied navies to regroup.
Serbia is invaded by Germany, Austria-Hungary and their new ally, Bulgaria.
French, British and Italian troops begin landing at Salonika (now Thessaloniki, in Greece) in the Balkans.
The Austro-Hungarians fail in a second attempt at invading Serbia.
The Serbs defeat the invading Austro-Hungarians in the first major Allied victory of the First World War. This battle also sees the first aerial dogfight when the pilots of Serbian and Austro-Hungarian reconnaissance aircraft engage each other with small arms.