Final answer:
John F. Kennedy and Ronald Reagan were two presidents during the Cold War era, known for their actions during pivotal moments such as the Cuban Missile Crisis and the thawing of US-Soviet relations, respectively.
Step-by-step explanation:
Two presidents during the Cold War era were John F. Kennedy and Ronald Reagan. Kennedy was known for his role during events such as the Bay of Pigs invasion and the Cuban Missile Crisis, whereas Reagan was president at a time when the United States was outspending the Soviet Union militarily and witnessing a growing economy compared to the stagnation in the USSR. Reagan's tenure also saw increased tensions but ultimately a movement towards thawing relations with the signing of the INF Treaty with Soviet leader Mikhail Gorbachev.