Post-WWII History involving Athenagoras, Truman, and CIA.
https://orthodoxhistory.org/2019/12/11/ousting-the-ecumenical-patriarch/
World War II ended in 1945, and immediately, the United States and the Soviet Union began jockeying for leadership in the postwar world. The Soviets swept as many countries as possible into their orbit; meanwhile, the United States adopted the Truman Doctrine, a foreign policy based on the containment of Communism throughout the world. Orthodoxy became one of the many proxy fronts in the Cold War: as the Soviets attempted to use the Moscow Patriarchate to the other Orthodox Churches to support Communism, the United States backed the Ecumenical Patriarchate as a pro-Western counterweight.