The invasion of Poland was over in weeks, it took England a while to mobilize troops, and what they did to reinforce France were inadequately positioned to then

The invasion of Poland was over in weeks, it took England a while to mobilize troops, and what they did to reinforce France were inadequately positioned to then repel the invasion of France. Remember that England and France thought it would be crazy for another war after WWI that Germany really wouldn't invade Poland. And likewise, Germany/Hitler were surprised that England and France really did draw a line at Poland.