17.—Antilles, American transport, westbound from France, sunk by submarine; 67 lost.
18.—Moon Island, in the Gulf of Riga, taken by Germans.
23.—American troops in France fire their first shot in trench warfare.
23.—French advance northeast of Soissons.
24.—Austro-Germans begin great offensive on Italian positions.
25.—Italians retreat across the Isonzo and evacuate the Bainsizza Plateau.
26.—Brazil at war with Germany.
27.—Goritzia recaptured by Austro-Germans.
30.—Michaelis, German Chancellor, resigns; succeeded by Count George F. von Hertling.
31.—Italians retreat to the Tagliamento.