Adolf Hitler was a German political leader who rose to power as the Chancellor of Germany in 1933 and later Führer in 1934. He led the National Socialist German Workers' Party (Nazi Party) and was a central figure in the initiation of World War II, as well as the architect of the Holocaust, which resulted in the genocide of six million Jews and millions of others. His totalitarian regime was marked by extreme nationalism, militarism, and the suppression of dissent. Hitler's actions and ideologies have had a profound and devastating impact on history.