British Submarine HMS B11 in 1915, Popular Mechanics, March 1915. Image in public domain.
- The British submarine B-11 proceeds two miles up the Dardanelles Straits. This is the first warship to enter the Straits.
- Indian Expeditionary Force “D” troops land at Fao in Mesopotamia and begin to lay siege to the fortress. Their aim is to protect British oil interests in neighbouring Persia, and encourage an Arab revolt against Turkish rule.
- Turkey severs diplomatic relations with Belgium
- Keuprikeui in Armenia is taken by Russian forces
