31 December

Western Front

 * Artillery duels on whole front; especially round St. Georges, La Bassée, Roye and Verdun.
 * French recover port of Steinbach (Alsace).

Eastern Front

 * Poland and Galicia: Austro-German retreat.
 * Hungary: Once more raided over the Passes.

Southern Front

 * Serbia: Preparations to meet new Austrian invasion.

Asiatic and Egyptian Theatres

 * Egypt: Preparations to meet expected Turkish attack complete.

Political

 * Prussian losses to date, 753,000.