How did Adolfo hitler contribute to the outbreak of world war II

Germany's invasion of Poland in 1939 led to the outbreak of World War II, and by 1941 Nazi forces had occupied much of Europe. Hitler's virulent anti-Semitism and obsessive pursuit of Aryan supremacy fueled the murder of some 6 million Jews, along with other victims of the Holocaust. After the tide of war turned against him, Hitler committed suicide in a Berlin bunker in April 1945.