Armenia: Istomin’s brigade of 8,000 men forced by 3 Turk divisions of X Corps to abandon Olta in frontier salient, loses 750 PoWs and 6 guns, retreats 12 miles (ca. 19 km) northeast to Avcali salt mines. Snow blizzard next day, Istomin’s 5,000 survivors retreat 8 miles (ca. 13 km) east of Merdenik until December 25.
Austrian Potiorek is sacked; Archduke Eugene becomes Balkans C-in-C, Baron Sarkotic-Lovcen succeeds Potiorek as Austrian Governor of Bosnia-Herzegovina starting in 1915.
Flanders: Belgian troops cross river Yser south of Dixmude.