February
10.—Russians defeated by Germans in Battle of Masurian Lakes.
18.—German submarine "blockade" of British Isles begins.
25.—Allied fleet destroys outer forts of Dardanelles.
March
2.—Allied troops land at Kum-Kale, on Asiatic side of Dardanelles.
10.—British take Neuve Chapelle in Flanders battle.
14.—Dresden, German raiding cruiser, is sunk by British squadron off the Chilean coast.
22.—Austrian fortress of Przmysl surrenders to Russians.
April