CBI - China: Day 109 of 154 of the Japanese Invasion of Manchuria.
1933 — , January 4
CBI - China: Day 4 of 142 of the 1st Battle of Hebei.
1937 — , January 4
Spain: Day 172 of 985 of the Spanish Civil War.
1938 — , January 4
Spain: Day 537 of 985 of the Spanish Civil War.
CBI - China: Day 182 of 2,987 of the 2nd Sino-Japanese War.
Day 27 of 54 of the Battle of Nanking.
Day 23 of 50 of the Rape of Nanking.
1939 — , January 4
Spain: Day 902 of 985 of the Spanish Civil War.
CBI - China: Day 547 of 2,987 of the 2nd Sino-Japanese War.
1940 — , January 4
ETO: The French Army uses experimental acoustic locator devices to pick up the sound of distant German aircraft engines and give their distance and location. Radar technology, however, will soon render these devices obsolete.
Members of the French Army man an acoustic locator device, one of many experimental designs, built to pick up the sound of distant aircraft engines and give their distance and location through triangularization.
Sound ranging or acoustic location techniques, both active (creation of sound to produce an echo) and passive (detection of sound or vibration coming from an object), first came into use as military air defense tools in mid-World War I. When Radar technology came along, it was far more effective, but could also be intercepted. Therefore, some acoustic locators remained in use; also having the advantage that they could "see" around corners and over hills, due to sound refraction.
Radar was secretly developed by several nations before and during World War II. The term RADAR was coined in 1940 by the United States Navy as an acronym for RAdio Detection And Ranging. The term radar has since entered English and other languages as the common noun radar, losing all capitalization.
Several nations used acoustic listening devices before and during WWII. Shown here is a Soviet aircraft listening post near Moscow, Oct 1941.
A Japanese "War Tuba" listening device, circa 1930.
Finland: Day 4 of 7 of the Battle of Raate Road in central Finland.
CBI - China: Day 912 of 2,987 of the 2nd Sino-Japanese War.
Day 51 of 381 of the Battle of South Guangxi.
1941 — , January 4
ETO - UK: Day 121 of 258 of the Blitz.
MTO - North Africa: Day 27 of 63 of the UK's Operation COMPASS, their campaign in North Africa against the Italians in Egypt and Libya.
East Africa: Day 209 of 537 of Italy's East African campaign in the lands south of Egypt.
CBI - China: Day 1,278 of 2,987 of the 2nd Sino-Japanese War.
CBI - Thailand: Day 96 of 221 of the Franco-Thai War (Vichy France vs Thailand).
1942 — , January 4
Russian Front - North: Day 119 of 872 of the Siege of Leningrad.
Russian Front - Center: Day 95 of 98 of the Battle of Moscow. The Soviet Army captures Kaluga to the southwest of Moscow.
Russian Front - South: Day 67 of 248 of the Siege of Sevastopol, Crimean Peninsula. All further German attacks against the Crimean fortress of Sevastopol are stopped for the winter.
CBI - Burma: Day 22 of 164 of Japan's Invasion of Burma.
CBI - China: Day 1,643 of 2,987 of the 2nd Sino-Japanese War.
Day 12 of 99 of the 3rd Battle of Changsha.
Chiang Kai-Shek is appointed as Supreme Allied commander in China.
CBI - Malaya: Day 28 of 55 of the Battle of British Malaya.
PTO - Borneo: Day 20 of 107 of the Battle of Borneo.
PTO - New Guinea: Japanese warplanes attack Rabaul, New Britain Island.
PTO - Philippines: Day 28 of 152 of the 1st Battle of the Philippines. US 5th Air Force fighters from the Bataan Peninsula are too late in trying to stop a Japanese bombing raid on Corregidor Island in Manila Bay.
1943 — , January 4
ETO - France: US 8th Air Force B-17s and B-24s attack the St Nazaire U-Boat base.
Russian Front - North: Day 484 of 872 of the Siege of Leningrad.
Russian Front - North: Day 47 of 59 of the Battle of Velikiye Luki, near Leningrad. This stalemate does help ease the siege a little, but mostly it keeps German troops from being sent to other fronts.
Russian Front - North: Day 245 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 136 of 165 of the Battle of Stalingrad, bloodiest battle in human history.
Russian Front - South: Day 24 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 49 of 178 of the Battle of Tunisia. US 9th and 12th Air Forces provide Allied air support.
CBI - Burma: Day 15 of 104 of the 1st Battle of Arakan. US 10th Air Force provides air support.
CBI - China: Day 2,008 of 2,987 of the 2nd Sino-Japanese War.
PTO - Alaska: Day 212 of 435 of the Battle of Kiska, Aleutian Islands.
PTO - Malaya: Day 320 of 357 of the Battle of Timor Island, a long guerrilla war ending in Japanese victory.
PTO - New Guinea: Day 47 of 66 of the Battle of Buna-Gona. 5th Air Force provides air support. B-26s pre-bomb Sanananda Point for an upcoming Allied offensive.
PTO - Solomon Islands: Day 151 of 187 of the Battle of Guadalcanal. The Japanese Navy orders the evacuation off Guadalcanal by the end of the month.
1944 — , January 4
ETO - Germany: Day 48 of 135 of the Battle of Berlin (RAF bombing campaign). Two flying bomb sites are attacked effectively by 80 aircraft.
ETO - France: US 9th Air Force B-26s bomb NOBALL (V-weapon sites) in France for Operation CROSSBOW.
ETO: US 8th Air Force: The first mission for Operation CARPETBAGGER is flown. This is a secret bomb group conducting covert missions for the OSS, used mostly for supporting resistance forces in Europe.
ETO - Germany: Germany announces the mobilization of school children for doing war work.
ETO - Germany: US 8th Air Force heavy bombers attack Kiel and Munster.
Russian Front - North: Day 849 of 872 of the Siege of Leningrad.
Russian Front - North: Day 610 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 12 of 113 of the USSR's Dnieper-Carpathian Offensive in southwestern Ukraine.
Russian Front - South: Day 12 of 22 of the Battle of Zhitomir, Russia. This will create a 70 mile gap in the German line.
MTO - Bulgaria: US 15th Air Force B-17s bomb targets in the Dupnica area.
MTO - Yugoslavia : US 12th Air Force B-25s bomb at Brodac and Travnik.
MTO - Italy: RAF and US Air Forces provides air support for the Allied ground troops.
CBI - Burma: Day 6 of 99 of the 2nd Battle of Arakan.
CBI - China: Day 2,373 of 2,987 of the 2nd Sino-Japanese War.
CBI - Malaya: US 5th Air Force B-24s and B-25s hit shipping at Koepang on Timor Island.
PTO - Marshall Islands: US 7th Air Force bombs on Emidj Island.
PTO - New Guinea: Day 108 of 219 of the Battle of Shaggy Ridge. US 13th Air Force provides air support.
PTO - New Guinea: Day 105 of 162 of the Battle of the Huon Peninsula. 5th Air Force provides air support.
PTO - New Guinea: Day 21 of 597 of the Battle of New Britain. US 13th Air Force provides air support.
PTO - Solomon Islands: Day 65 of 295 of the Battle of the Bougainville Islands.
1945 — , January 4
USA: US issues its casualty figures through the 21st of December 1944 are reported as 135,323 killed, 362,824 wounded, 75,844 missing and 64,148 captured.
ETO - France: US 8th Air Force B-24s hit the Coubre Point Coastal battery near Bordeaux using H2X radar.
ETO - France: Day 157 of 284 of the Battle of Brittany.
ETO - France: Day 112 of 236 of the Siege of Dunkirk.
ETO - Belgium: Day 20 of 41 of the Battle of the Bulge. US 9th Air Force provides air support.
ETO - Belgium: Day 5 of 26 of Operation NORDWIND, the last major German offensive of World War II on the Western Front.
ETO - Germany: Day 108 of 145 of the Battle of Hürtgen Forest.
Russian Front - Finland: Day 112 of 223 of the Lapland War. Finland and Russia have joined forces to kick the Germans out of Finland's most northern province.
Russian Front - Center: Day 82 of 206 of the Battle of the Courland Pocket in Latvia.
Russian Front - Center: Day 75 of 99 of the Siege of Memel, a border town of Lithuania and East Prussia.
Russian Front - South: Day 68 of 108 of the Battle of Budapest, Hungary.
MTO - Italy: US and Royal Air Forces provides air support for the Allied ground units.
CBI: US 14th Air Force attacks targets in China, Burma and Thailand.
CBI - Burma: Day 279 of 302 of the Chinese Salween Offensive. British forces occupy Akyab. US 10th Air Force provides air support.
CBI - China: Day 2,739 of 2,987 of the 2nd Sino-Japanese War.
PTO - Japan: US 7th Air Force B-24s bomb Iwo Jima.
PTO - New Guinea: Day 374 of 597 of the Battle of New Britain.
PTO - New Guinea: Day 258 of 481 of the Battle of Western New Guinea.
PTO - Philippines: Day 77 of 299 of the 2nd Battle of the Philippines, aka the Liberation of the Philippines or the Philippines Campaign.
PTO - Philippines: Day 21 of 244 of the Battle of Luzon. 5th Air Force provides air support.
1946 — , January 4
UK: British soldier Theodore Schurch is hanged for treason in Wandsworth Prison under the Treachery Act 1940, becoming the last person to be executed in Britain for an offense other than murder. Schurch had been captured by Axis forces in June 1942 at Tobruk and soon began working for their intelligence, infiltrating Allied POWs to gain their trust.
Day-By-Day listings for January 4 were last modified on Thursday, January 28, 2016