21 Apr 1943
  • USS Scorpion sank a sampan before 0100 hours with her deck gun. In the afternoon, she patrolled off Shioyasaki, eastern Honshu, Japan. ww2dbase [Main Article | CPC]
  • US President Franklin Roosevelt made the official announcement regarding the Japanese execution of downed American airmen who had participated in the Doolittle Raid. ww2dbase [Main Article | TH]
  • New Zealand troops of Maori ethnicity captured Takrouna, Tunisia. ww2dbase [Main Article | CPC]
British Western Pacific Territories
  • Isoroku Yamamoto's remains were cremated at Buin, Bougainville, Solomon Islands. ww2dbase [Main Article | CPC]
Caroline Islands China
  • Joseph Stilwell and Claire Chennault departed Chongqing, China. ww2dbase [Main Article | CPC]
  • Satoru Anabuki, flying Ki-43 fighter "Fubuki", shot down two P-36 fighters over Imphal, India, increasing his score to 34. ww2dbase [Main Article | CPC]
Pacific Ocean
  • USS Wahoo conducted training off Midway Atoll. ww2dbase [Main Article | CPC]
  • USS Runner attacked a Japanese transport in the South China Sea; all 5 torpedoes fired missed. ww2dbase [Main Article | CPC]
  • Joseph Stalin officially signed the order to create GUKR SMERSH, the Main Directorate of Counterintelligence "Smert'shpionam" ("Death of Spies") and the naval UKR SMERSH. ww2dbase [Main Article | CPC]
  • Troops of 48th Battalion of British Royal Tank Regiment captured German Tiger I heavy tank "131" near Medjez-el-Bab, Tunisia. ww2dbase [Main Article | CPC]
United Kingdom
  • Allied convoy ONS 5 consisted of 42 ships departed from Liverpool, England, United Kingdom for a 3-week journey to Halifax, Nova, Scotia, Canada; it was escorted by 7 warships (2 destroyers, 1 frigate, and 4 corvettes) and supported by 2 trawlers and 1 tanker. The convoy was under the command of J. Kenneth Brook of the British Royal Navy Reserve; he was aboard Norwegian freighter Rena. The convoy was to grow in size from mid-journey rendezvous with other ships departing from other ports. ww2dbase [Main Article | CPC]
  • An attempt was made to assassinate General Charles de Gaulle when the Wellington bomber flying him to Glasgow, Scotland, United Kingdom was sabotaged at RAF Hendon. The pilot detected the elevator controls had been cut just before take-off and aborted the flight. At the time, the incident was hushed up and blamed on German intelligence but de Gaulle never flew by plane in Britain again. ww2dbase [Main Article | AC]
United States
  • USS Ancon's conversion work from cargo-passenger ship to combined headquarters and communications ship was completed at Norfolk Navy Yard, Portsmouth, Virginia, United States. ww2dbase [Main Article | Facility | CPC]
Photo(s) dated 21 Apr 1943
Sargo off Mare Island Navy Yard, 21 Apr 1943, photo 1 of 2Sargo off Mare Island Navy Yard, 21 Apr 1943, photo 1 of 2President Franklin Roosevelt seated in his car as his party arrived at Naval Air Station Corpus Christi, Texas, United States, 21 Apr 1943. Note Eleanor Roosevelt standing by.President Franklin Roosevelt seated in his car as he arrived at Naval Air Station Corpus Christi, Texas, United States, 21 Apr 1943.
See all photos dated 21 Apr 1943

21 Apr 1943 Interactive Map

Timeline Section Founder: Thomas Houlihan
Contributors: Alan Chanter, C. Peter Chen, Thomas Houlihan, Hugh Martyr, David Stubblebine
Special Thanks: Rory Curtis

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Famous WW2 Quote
"With Germany arming at breakneck speed, England lost in a pacifist dream, France corrupt and torn by dissension, America remote and indifferent... do you not tremble for your children?"

Winston Churchill, 1935