Joffre and Field Marshall French confer at Chantilly.
Artois: 10 Chasseurs de Alpins battalions capture 800 yards (0.73 km) of Bavarian trenches at La Targette after 2 hours artillery preparation.
Flanders: Belgians take German trenches near Lombaertzyde.
Vosges: Germans bombard St Die.
Conrad cables Falkenhayn ‘Complete success in the Eastern theater is … extremely urgent’.
Tsar at STAVKA (December 26-29), inspects new 53rd Don Cossack Regiment on December 28.
Poland: Germans beaten on river Ravka.
Armenia: Turks repulsed from Sarikamish; Turkish 28th Division reaches but driven off Kars road.