Chronology of World War II
Polish leaders flee, urging troops to fight
Monday, September 18, 1939 www.onwar.com
In Romania... The Polish president, Moscicki, and the Commander in Chief, Rydz-Smigly, enter Romania and are interned. They leave behind messages telling their troops to fight on.

In Poland... Soviet forces have advanced 100 km into Poland, meeting little resistance. The German 3rd and 10th armies begin attacking Warsaw. Members of the Polish cipher bureau, with vital knowledge of the German Enigma code, flee the country and head for Paris.

In Copenhagen, Helsinki, Oslo, Stockholm and Reykjavik... In simultaneous announcements, Denmark, Finland, Norway, Sweden and Iceland declare that they intend to continue trading with all belligerents to protect their economic existence.

In Berlin... A week after making his first broadcast to Britain, the Irish ex-Mosleyite William Joyce is given a contract with German radio.

In the North Atlantic... SS Kensington Court is shelled and sunk by a German U-boat; 2 RAF Sunderland flying boats rescue 34 men.


This chronological study of the Second World War provides a comprehensive day-by-day account of WWII. While focused on the military history of the war, with an emphasis on the battles and campaigns fought, the timeline includes social and political history as well. Some Holocaust related events are already recorded and additional updates are pending. In so far as possible, the images included in this presentation are pictures from the given days. Additional information and images are welcome through the feedback form found on the index.