Who started World War Two and how was it started

The two dates most often mentioned as "the beginning of World War II" are July 7, 1937, when the "Marco Polo Bridge Incident" led to a prolonged war between Japan and China, and September 1, 1939, when Germany invaded Poland, which led Britain and France to declare war on Hitler's Nazi state in retaliation

World war 2 was the battle of the red army and germany vs the americans soviet union and france. It was started by Adolf hitler and the nazis who thought gays, lesbians, gypsies, jews, and other minorities did not deserve to live.