20 Sep 1943
  • HMS Polyanthus (Lieutenant J. G. Aitken) was torpedoed and sunk by the German submarine U-952, whilst on escort duties southwest of Iceland. ww2dbase [AC]
  • The Japanese Navy formed the 13th Air Fleet on paper with Vice Admiral Shiro Takasu in command and Rear Admiral Takeo Tada as the chief of staff. ww2dbase [CPC]
  • De Havilland Vampire jet fighter took its first flight. ww2dbase [CPC]
  • Rudolf Höss' fifth child Annegret was born. ww2dbase [Main Article | CPC]
Australia
  • USS Cisco departed Darwin, Australia for her first and only war patrol. ww2dbase [Main Article | CPC]
Australian Papua
  • Two Ki-49 aircraft of Japanese 7th Flying Regiment attacked Port Moresby, Australian Papua. ww2dbase [Main Article | CPC]
Caroline Islands China
  • The Japanese Autumn Mop-up Operation began in Hebei, Shandong, and Henan Provinces in China; 30,000 men were deployed to wipe out Chinese Communist guerrilla forces. ww2dbase [CPC]
Italy
  • British Eighth Army captured Bari, Italy. Meanwhile, Venice was bombed by Allied planes. ww2dbase [Main Article | TH]
Marshall Islands Pacific Ocean
  • USS Haddock fired 6 torpedoes on oiler Notoro in the Pacific Ocean, damaging her with 3 hits; Notoro, originally saililng for Japan, turned toward Truk, Caroline Islands for repairs. ww2dbase [Main Article | CPC]
  • USS Haddock fired a total of 12 torpedoes across the span of the day in the Pacific Ocean, damaging transport Shinyubari Maru with 3 hits and damaging another with 4 hits. Haddock was counterattacked several times on this date. ww2dbase [Main Article | CPC]
Ukraine
  • German Armeegruppe Süd began withdrawing to a new line running from Melitopol to Zaporozhe in Ukraine. ww2dbase [TH]
Photo(s) dated 20 Sep 1943
German PaK 40 gun near Salerno, Italy, late Sep 1943

20 Sep 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
"All right, they're on our left, they're on our right, they're in front of us, they're behind us... they can't get away this time."

Lt. Gen. Lewis B. "Chesty" Puller, at Guadalcanal