How did the rise of Hitler start the world war 2?

Answer 1

Simple question begats a simple answer. Adolf Hitler was responsible for the actual "start" of World War II. He accomplished this with the invasion of Poland on 1 September 1939. At this time, Mussolini and Italy were not in the war, Stalin's Soviet Union was locked in a Non-Agression Pact with Nazi Germany, and the Japanese were consolidating their hold on China and the Far East. The conflict we know as World War II began when Hitler invaded Poland.