20 Oct 1942
  • Light carrier Hosho was assigned to the Mobile Force Training Force. ww2dbase [Main Article | Tabular Record of Movement | CPC]
  • Submarine tender Taigei was assigned to the Japanese Navy Maizuru Naval District as Reserve Ship No. 1. ww2dbase [Main Article | Tabular Record of Movement | CPC]
  • USS S-31 arrived in the Kurile Islands region. ww2dbase [Main Article | CPC]
  • USS Finback attacked a Japanese convoy off China, firing 9 torpedoes and claiming 3 hits and claiming two sinkings. ww2dbase [Main Article | CPC]
  • While cruising in support of the operations in the Solomon Islands, USS Chester was struck by a torpedo fired from Japanese submarine I-176, killing eleven and wounding twelve. ww2dbase [Main Article | DS]
  • U-132 joined wolfpack Veilchen. ww2dbase [Main Article | CPC]
  • Japanese submarine I-176 attacked and damaged USS Chester in the Solomon Islands area. ww2dbase [Main Article | CPC]
  • USS S-35 arrived at Unalaska, US Territory of Alaska in the Aleutian Islands. ww2dbase [Main Article | CPC]
Australian New Guinea
  • Hakkai Maru completed temporary repairs for Tenryu at Rabaul, New Britain. ww2dbase [Main Article | Tabular Record of Movement | CPC]
  • The USAAF conducted a photo reconnaissance mission over Rabaul, New Britain, revealing a concentration of about 70 ships. ww2dbase [CPC]
British Western Pacific Territories
  • USS Helena observed incoming Japanese torpedoes while on patrol between Espiritu Santo of New Hebrides and San Cristobal island in the Solomon Islands; all torpedoes missed. ww2dbase [Main Article | CPC]
  • Japanese Lieutenant General Masao Maruyama delayed the planned assault on Henderson Field on Guadalcanal, Solomon Islands until 22 Oct 1942. ww2dbase [Main Article | Facility | CPC]
  • A Japanese combat patrol, supported by two tanks, was driven back by men of the 3rd Battalion of the US 1st Marine Regiment west of the Matanikau River. ww2dbase [Main Article | CPC]

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