February 1915
| Date | Events |
|---|---|
| 2 | Forward elements of Turkish forces reach the Suez Canal, having crossed the Sinai desert: they engage British outposts next day |
| 2 | Turkish forces invade British Protectorate of Aden |
| 4 | Turkish troops withdraw from Suez Canal |
| 4 | German government announces that a submarine blockade of Britain will begin on 18 February |
| 5 | British, French and Russian governments agree to pool their financial resources |
| 9 | Units of 1st Canadian Division depart England for France |
| 15 | Allied governments suggests to Greece that it should intervene in support of Serbia and promise military support at port of Salonika |
| 15 | Indian 5th Light Infantry mutinies at Singapore |
| 16 | British govenment decides to send 29th Division to Gallipoli |
| 18 | German submarine blockade of Britain begins |
| 19 | Allied navies begin attack on forts at Dardanelles |
| 19 | Norwegian ship "Belridge" torpedoed by German sumarine (first sinking without warning) |
| 20 | British government issues orders for employment at Gallipoli of Australian and New Zealand troops (now in Egypt) |
| 22 | Net completed across Irish Sea between Scotland and Ireland, denying it as a submarine route |
| 22 | South African force begins to advance from Swakopmund towards Windhoek |
| 23 | Royal Marines land at Lemnos |
| 24 | First British Territorial Division (46th (North Midland)) leaves England for France |
| 26 | Germans troops employ liquid fire for first time against French troops |