Radio Free Europe 11/26/2019
Goar Vartanian, a former Soviet spy who with her husband helped prevent a Nazi assassination of Allied leaders in Tehran during World War II, has died in Moscow at age 93.
In 1943, the Vartanians helped thwart Operation Long Jump -- a plot by Nazi Germany to kill Soviet leader Josef Stalin, British Prime Minister Winston Churchill, and U.S. President Franklin Roosevelt during a 1943 summit in the Iranian capital.
After Hitler ordered the plot to kill the "Big Three," the Vartanians and their group reportedly tracked Nazi agents and exposed the plan before it could take place.
More:
https://www.rferl.org/a/former-soviet-spy-goar-vartanian-dies-at-93-helped-prevent-attack-on-wwii-allied-leaders/30293774.html
