14.—Italian positions penetrated by Austrians.
15.—Vimy Ridge gained by British.
26.—Bulgarians invade Greece and occupy forts on the Struma.
31.—Jutland naval battle; British and German fleets engaged; heavy losses on both sides.
June
5.—Kitchener, British Secretary of War, loses his life when the cruiser Hampshire, on which he was voyaging to Russia, is sunk off the Orkney Islands, Scotland.
6.—Germans capture Fort Vaux in Verdun attack.
8.—Lutsk, Russian fortress, recaptured from Germans.
17.—Czernowitz, capital of Bukowina, occupied by Russians.
21.—Allies demand Greek demobilization.