The true story of world war 7

My grandpa was on his death-bed and told me the real story behind world war 7. Hitler burned the Jews and the Nazis got angry, so the U.S. punched Hitler and Hitler punched Barack "Bin Laden" Obama, and Baraka Obama punched him again, and the senate fired him because he bullied dead people, but he tried to explain that Hitler punched him, and hitler said, "nuh-uh" so everyone believed him because he was dead.