May10,1940 Hitler's troops drove into France and within the following six weeks,Holland,Belgium and Luxembourg surrendered just as France did. June22,1941 Hitler launched his long-term attack on the Soviet Union. May 10, 1940 Hitler’s troops drove into France and within the following six weeks, Holland, Belgium and Luxembourg surrendered just as France did. June 22, 1941 Hitler launched his long-term attack on the Soviet Union