WWll By ergdrfgthryhythnsdbgasethb Sep 1, 1939 Invasion of Poland Germany invaded Poland using blitzkrieg tactics. This began World War II. Sep 7, 1940 London Blitz Germany bombed British cities to weaken morale. Britain continued to resist. Jul 17, 1942 Victory at Stalingrad The Soviet Union defeated German forces. This was a major turning point in the war.