Important events of world war 2 By dlynnswartz Jan 30, 1933 Adolf Hitler Elected Chancellor of Germany Mar 15, 1939 Germany invades Czechoslovakia (First Battle WW2) Period: Sep 1, 1939 to Sep 2, 1945 World War 2 May 10, 1940 Germans use Blitzkrieg tactics & suprise France Sep 27, 1940 Tripartite Pact officially forms Axis powers Dec 7, 1941 Japanese Bomb Pearl Harbor Dec 8, 1941 U.S.A & Britain declare war on Japan Jul 9, 1943 Allies invasion of Sicily leads to Italian surrender Jun 6, 1944 D-Day occurs Apr 30, 1945 Hitler commits Suicide Sep 2, 1945 Atom bomb leads to Japanese Surrender