The German invasion of the Netherlands By stu.chadwelle Sep 1, 1939 German army invades Poland Apr 19, 1940 Government proclaimed martial law May 10, 1940 German army invades Netherlands Dutch observers see bombers May 13, 1940 Grebbe line falls May 14, 1940 Germany presents the Dutch command May 15, 1940 General Winkelman signed capitulation agreement Period: May 29, 1940 to 1945 Germans call shots in Netherlands (cant insert picture since its a time span) Jun 23, 1940 Hitler visits Paris