The Battle of the Aisne begins (see Sept. 28); the British force the passage of the river. Soissons and Amiens are reoccupied by the French.
Galicia:—The Battle of Grodek (see Sept. 6) ends in a complete Russian victory.
The German light cruiser Hela is sunk off Heligoland by the British submarine E9 (the first successful submarine attack by the British).
Sept. 14 (Mon.)
High ground north of the Aisne is captured by the British 1st Corps. The Germans evacuate Rheims.
In Galicia, the Russians advance across the San.
H.M.S. Carmania (auxiliary cruiser) sinks the German auxiliary cruiser Cap Trafalgar off Trinidad after a sharp action.
Sept. 15 (Tues.)
The Russians take Czernowitz, in the Bukovina (see Oct. 22).