Battle of the Atlantic
- The German tanker Biskaya (6386t) is captured by the British armed merchant cruiser Scotstoun on Northern Patrol in the Denmark Strait. She is taken to Leith where she is renamed Empire Unity and put in British service.
- The German tanker Gonzenheim (4574t) is intercepted by the British armed merchant cruiser Rawalpindi on Northern Patrol in the Denmark Strait and scuttled.
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]Diplomatic Relations
A pact of mutual assistance is agreed upon between France, Great Britain and Turkey. Turkey will remain neutral for most of the war.
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Germany, Planning
OKH issues Fall Gelb (Plan Yellow) in response to Hitler's Directive of Oct 9. This is the plan for the attack in the west. It provides for a holding action on the French border with the main attack being sent through central Belgium with some attention being given to the Dutch. On Oct 29 it is reissued in a slightly modified form with the main thrust shifted slightly south and less strength being sent against Holland. Neither Hitler nor any of the senior commanders is particularly happy with it and there is much debate as to how it should be modified. The debate continues until mid-Feb 1940 when those voices calling for a radical change manage to have their way. Gen Erich von Manstein will lead this movement.[
| ]Poland
Hitler officially incorporates western Poland into the German Reich. The first Jewish ghetto is established in Lublin by the SS.
[ | ]Western Front
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