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This Month in World War I |
Theatres | ||
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Western | Eastern | Italian |
Caucasian | Middle Eastern | Balkan |
African | Naval | Air |
Politics | Asian and Pacific | Gallipoli |
Dates | Events | |
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September 25 – October 15 | Battle of the Hohenzollern Redoubt, a phase of the Battle of Loos. | |
September 25 – November 6 | Second Battle of Champagne. | |
October 7 – December 4 | Serbia is invaded by Germany, Austria-Hungary, and Bulgaria. | Details |
October 14 | Bulgaria declares war on Serbia | Details |
October 14 – November 9 | Morava Offensive, a phase of the Central Powers Invasion of Serbia, Bulgarians break through Serbian lines. | |
October 14 – November 15 | Ovche Pole Offensive, a phase of the Central Powers invasion of Serbia, Bulgarians break through Serbian lines. | |
October 15 | The United Kingdom declares war on Bulgaria. | |
October 16 | France declares war on Bulgaria. | |
October 17 – November 21 | Battle of Krivolak, start of the set up of the Salonika Front. | |
October 18 – November 4 | Third Battle of the Isonzo | Details |
October 19 | Italy and Russia declare war on Bulgaria. | |
October 27 | A French army lands in Salonika and, with the help of British and Italian troops, sets up a Balkan Front. |
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