Adolf Hitler was an Austrian-born German politician who was dictator of Germany from 1933 until his in 1945. He rose to power as the leader of the Nazi Party,[a] becoming the chancellor in 1933 and then taking the title of Führer und Reichskanzler in 1934.[b] During his dictatorship, he initiated WW II in Europe by invading Poland on 1 September 1939. He was closely involved in military operations throughout the war and was central to the perpetration of the Holocaust: the of about six million Jews and millions of other.