Eastern Front
Caucasus: Germans withdrawing from Caucasus.
Pacific
New Guinea: BUNA CAPTURED by Allied forces. Many underground bunkers destroyed one by one by tanks and explosive charges.
Air War
Merditerranean: Stukas, FW 190 fighter-bombers and He 111 torpedo planes make frequent sorties against Allied shipping in and around Bone, Bougie and Algiers during January: 4 ships sunk; cruiser Ajax, destroyer and anti-aircraft ship damaged. First Allied daylight raid on Crete (main target, Suda Bay).