The mam pictured above is George F. Kennan. He is worth a google. His influence, according to Kissinger, through the Long Telegram, and the “Sources of Soviet Conduct” published in “Foreign Affairs” under the pseudonym “X” not only were the foundation of the policy of containment but went so far as to predict what would happen under Gorbachev, namely, the dissolution of the USSR.
There is a lot here in this little chapter. What if Lippman had been more influential? What about Wallace? Was Truman really returning to a style of Realpolitik (Is that why Kissinger likes him so much?) and merely couching the protection in moral codes, or did he really believe he was advancing collective security? Did Acheson really believe NATO was not an alliance aimed at the Soviet Sphere? The Matthews Memorandum is worth noting as is Clark Clifford.
Were the suggestions of Kennan really implemented?