First Year of WW2 1939-1940

In 1939, Germany plunges Europe into war by breaking their promises for peace and marching into Poland. By the end of 1940 though, Britain is the only Great Power still standing against a seemingly invincible German juggernaut. On the surface, the war’s opening phase seems like Hitler’s crowning achievement, but did the first 16 months of WW2 actually lay the groundwork for his ultimate defeat?