Operation Long Jump

Date	October–November 1943
Location	Tehran, Iran
Result	Plot discovered and aborted

Belligerents

Commanders and leaders

Franklin D. Roosevelt

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. 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. The assassination plan and its disruption has been popularized by the Russian media with appearances in films and novels.

According to Soviet sources, German military intelligence discovered, after breaking a U.S. Navy code, that a major conference would be held at Tehran in mid-October 1943. Based on this information, Adolf Hitler approved a scheme to kill all three Allied leaders. Operational control was passed to Ernst Kaltenbrunner, chief of the Reich Main Security Office, who chose Skorzeny to head the mission. The German agent Elyesa Bazna (codenamed "Cicero"), in Ankara, Turkey, was also brought into the operation.

The NKVD alleged that, despite German secrecy, it quickly uncovered the plot following a tip-off from Soviet agent Nikolai Kuznetsov, who was posing as Paul Siebert, an Oberleutnant in the Wehrmacht from Nazi-occupied Ukraine. He got the information from an SS-Sturmbannführer named von Ortel, who was known to become "talkative" when drinking. The Soviet agent learned about the operation by getting him drunk. However, other sources state von Ortel is a fictional person set up by Russians, and that Hans Ulrich von Ortel never existed.

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