who was the president that authored the idea of containment
Containment The basis of the doctrine was articulated in a 1946 cable by U.S. diplomat George F. Kennan during the post-World War II administration of U.S. President Harry S. Truman. As a description of U.S. foreign policy, the word originated in a report Kennan submitted to U.S. Defense Secretary James Forrestal in 1947, which was later used in a magazine article. It is a translation of the French term cordon sanitaire, which was used to describe Western policy toward the Soviet Union in the 1920s.
Brinkmanship The chance of things sliding out of control is often used in itself as a tool of brinkmanship, because it can provide credibility to an otherwise incredible threat. The Cuban Missile Crisis presents an example in which opposing leaders, namely U.S. president John F. Kennedy and Russian Leader Nikita Khrushchev, continually issued warnings, with increasing force, about impending nuclear exchanges, without necessarily validating their statements. Pioneering game theorist Thomas Schelling called this "the threat that leaves something to chance."[5]