Iranian regime is led by Shiite fanatics that believe that the only way the mythical Twelfth Imam can return is for the earth to be in a state of complete chaos and anarchy
If the U.S. and allies had known that Nazi Germany would embark on the genocide of six million Jews in Europe, along with five million others that included gypsies, homosexuals, and political opponents, is there any doubt they would have taken preemptive measures to stop the Holocaust?