15 November

Western Front

 * Battle of Ypres: Last serious attack of the Germans (made by the Prussian Guards) beaten off.

Eastern Front

 * Poland: Russians retreating before the strong German advance from Thorn, take up the line Gombin-Lodz.

Southern Front

 * Serbia: Austrians continue to advance: the Serbians fall back south-eastwards.

Asiatic and Egyptian Theatres

 * Mesopotamia: Skirmish between Turks and British at Sahain.