9 May 1944
- Japanese hospital ship Hikawa Maru arrived at Ambon, Molucca Islands and departed later on the same day. ww2dbase [Hikawa Maru | CPC]
- 108 prisoners of the Pithiviers Transit Camp in France were sent to La Rochelle, France to build fortifications at the mouth of the Gironde River on the Atlantic coast. ww2dbase [CPC]
- The Allies began an aerial campaign against airfields and rail lines in France in preparation for the cross-Channel invasion. ww2dbase [Normandy Campaign, Phase 1 | TH]
- USS Mingo arrived at Brisbane, Australia, ending her third war patrol. ww2dbase [Mingo | CPC]
- USS Makin Island was commissioned into service at Astoria, Oregon, United States with Commander William B. Whaley in command. ww2dbase [Makin Island | DS]
- USS Segundo was commissioned into service with Lieutenant Commander James D. Fulp, Jr. in command. ww2dbase [Segundo | CPC]
- Two companies of Chinese 88th Regiment and Khaki Combat Team of US 5307th Composite Unit (Provisional) captured Ritpong, Burma. ww2dbase [Battle of Myitkyina | Ritpong | CPC]
- Patrol Boat No. 102 arrived at Wasile Bay, Halmahera, Dutch East Indies at 1824 hours. ww2dbase [Stewart | Wasile Bay, Halmahera | CPC]
- The USAAF 306th Bomb Group flying from RAF Thurleigh launched a bombing raid against the airfield at Thionville, France. ww2dbase [Bombing of Cities in France and Low Countries | RAF Thurleigh | Thionville | DS]
- While retiring from her patrol area, submarine USS Tinosa made a surface attack on a large trawler believed to be a picket boat. After 12 hits from Tinosa's deck gun, the trawler was left burning and sinking by the stern. ww2dbase [Tinosa | DS]
- Rudolf Höss returned to Auschwitz Concentration Camp and ordered the expansion of the rail platforms, the activation of Crematorium V, the reactivation of Bunker 2 (gas chamber), the digging of five pits, among other items, in preparation for the arrival of Hungarian Jews at Auschwitz. ww2dbase [Auschwitz Concentration Camp | Rudolf Höss | Oswiecim | CPC]
- Red Army recaptured Sevastopol, Russia. ww2dbase [Sevastopol | TH]
9 May 1944 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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