Operation Long Jump (German: Unternehmen Weitsprung) was an alleged German plan to simultaneously assassinate Joseph Stalin, Winston Churchill, and Franklin Roosevelt, the "Big Three" Allied leaders, at the 1943 Tehran Conference during World War II.[1] The operation in Iran was to be led by SS-Obersturmbannführer Otto Skorzeny of the Waffen SS. A group of agents from the Soviet Union, led by Soviet spy Gevork Vartanian, uncovered the plot before its inception and the mission was never launched.[2] The assassination plan and its disruption has been popularized by the Russian media with appearances in films and novels.