Among them was the above-mentioned George Kennan, who called it a “fatal foreign policy mistake,” majority of members of the Arms Control Association, 19 U.S. Senators, and many others.

Source: https://original.antiwar.com/edward_lozansky/2023/08/08/clearing-the-fog-of-unprovoked-war/

From his perch in Moscow, Bullitt mentored George Kennan, his deputy, and befriended the novelist Mikhail Bulgakov.

Source: https://www.theatlantic.com/books/archive/2023/05/madman-in-the-whitehouse-review-freud-wilson/674230/?utm_source=feed

Or as Kennan would put it, according to Costigliola, “sharply opposed positions are just the asking price in the long, necessarily patient process of diplomacy.”

Source: https://foreignpolicy.com/2023/01/23/cold-war-george-kennan-diplomacy-containment-united-states-china-soviet-union/

Toward the end of his life, Kennan worried about how he would be judged by history.

Source: https://spectator.org/the-many-faces-of-george-f-kennan/