17 Dec 1939


- Soviet Army assaulted Summa, Finland. ww2dbase [The Winter War | TH]
- HMS Cumberland at Montevideo, Uruguay after Admiral Graf Spee scuttled. ww2dbase [Battle of the River Plate | Admiral Graf Spee | Cumberland | DS]
- The Governments of Great Britain, Australia, New Zealand and Canada signed the Air Training Agreement (Riverdale Agreement) in Ottowa, Ontario, Canada, thereby establishing the creation of the Commonwealth Air Training Plan (joined further by facilities in South Africa, Southern Rhodesia and the United States) for the joint training of military air crews. ww2dbase [Ottowa, Ontario | AC]
- Jagdgeschwader 2 "Richthofen" was operational at Jever, Germany. ww2dbase [Jever | CPC]
- Admiral Graf Spee was scuttled by her own crew at Montevideo, Uruguay. ww2dbase [Admiral Graf Spee | Montevideo | CPC]



17 Dec 1939 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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