East Africa: Day 238 of 537 of Italy's East African campaign in the lands south of Egypt. 5th Indian Division captures Barentu, Eritrea, forcing the Italians to withdraw toward the mountain fortress at Keren.
CBI - China: Day 1,307 of 2,987 of the 2nd Sino-Japanese War.
Day 4 of 31 of the Battle of South Henan.
CBI - Thailand: Day 125 of 221 of the Franco-Thai War (Vichy France vs Thailand).
1942 — , February 2
USA: Congress appropriates $26.5 billion for the US Navy, bringing total US war costs since June of 1940 to more than $115 billion.
Atlantic: Day 20 of 169 of Germany's Second "Happy Time," during which U-boats sink 609 Allied ships with little risk.
Russian Front - North: Day 148 of 872 of the Siege of Leningrad.
Russian Front - North: Day 25 of 29 of the Battle of Toropets, Russia. A failed attempt to break the siege at Leningrad.
Russian Front - North: Day 11 of 103 of the Battle of the Kholm Pocket. Another attempt to break the siege at Leningrad.
Russian Front - Center: Day 26 of 103 of the Battle of Vyazma, Russia.
Russian Front - Center: Day 26 of 103 of the Battle of Sychevsk, Russia.
Russian Front - South: Day 96 of 248 of the Siege of Sevastopol, Crimean Peninsula. All German attacks against Sevastopol are stopped for the winter.
MTO: A supply convoy bound for Malta sets sail from Alexandria. However, the Luftwaffe still manages to sink all three merchantmen before they reach Malta.
CBI - Burma: Day 51 of 164 of Japan's Invasion of Burma.
CBI - China: Day 1,672 of 2,987 of the 2nd Sino-Japanese War.
Day 41 of 99 of the 3rd Battle of Changsha.
CBI - Java: Day 4 of 17 of the Battle of Singapore. The Japanese siege of British troops in Singapore continues.
PTO - Borneo: Day 49 of 107 of the Battle of Borneo.
PTO - Dutch East Indies: Day 4 of 5 of the Battle of Ambon. Japanese troops invade Java.
PTO - New Guinea: Day 11 of 18 of the Battle of Rabaul, New Britain Island.
PTO - Philippines: Day 57 of 152 of the 1st Battle of the Philippines. 5th Air Force provides air support.
1943 — , February 2
ETO - UK: US 8th Air Force: Flying Spitfires, the 4th Fighter Group flies defensive and fighter patrols over the Channel.
Russian Front - North: Day 513 of 872 of the Siege of Leningrad.
Russian Front - North: Day 274 of 658 of the Siege of the Kholm Pocket, USSR lays siege to the Kholm Pocket but the Germans hold out for a about a year and a half.
Russian Front - South: Day 165 of 165 of the Battle of Stalingrad, bloodiest battle in human history. German troops surrender at Stalingrad in the first big defeat of Hitler's armies.
Russian Front - South: Day 53 of 69 of the USSR's Operation LITTLE SATURN. A successful drive into the Northern Caucasus and the Donets Basin pushing the Axis troops out.
MTO - Tunisia: Day 78 of 178 of the Battle of Tunisia. RAF and US Air Forces provide Allied air support.
CBI - Burma: Day 44 of 104 of the 1st Battle of Arakan. US 10th Air Force provides air support.
CBI - China: Day 2,037 of 2,987 of the 2nd Sino-Japanese War.
PTO - Alaska: Day 241 of 435 of the Battle of Kiska, Aleutian Islands.
PTO - Malaya: Day 349 of 357 of the Battle of Timor Island, a long guerrilla war ending in Japanese victory. Allies continue evacuating off the island.
PTO - Solomon Islands: Day 180 of 187 of the Battle of Guadalcanal. US 13th Air Force provides air support. Twenty Japanese destroyers begin evacuating 13,000 troops.
1944 — , February 2
PTO - Marshall Islands: Day 3 of 8 of the Battle of Kwajalein. US Marines complete the capture of Roi and Namur in the strategic Kwajalein Atoll, a major step in the Pacific offensive.
A Japanese soldier surrenders to three US soldiers in the Marshall Islands
The relatively easy capture of Kwajalein demonstrated US amphibious capabilities and showed that the changes to training and tactics after the bloody battle of Tarawa had been effective. It allowed Nimitz to speed up operations in the Marshalls and invade Eniwetok Atoll on 18 February 1944.
The Japanese learned from the battle that beachline defenses were too vulnerable to bombardment by ships and planes. In the campaign for the Mariana Islands, the defense in depth on Guam and Peleliu was much harder to overcome than the thin line on Kwajalein.