Nikita Khrushchev
Nikita Khrushchev from Germany debated against Kennedy during the Berlin Crisis.
It turned many Cuban Americans against Kennedy.
Your question is vague, so the only crisis dealing with Berlin that I can think of would be the Berlin airlift. If this is the case JFK was not in office in 1949. He wasn't elected president until 1960. If you mean the Cuban crisis that is a different story.
Upset by the failure at the Bay of Pigs, Kennedy was now even more determined to prove his toughness against communism. Later in 1961, he had another opportunity when a new crisis arose over a familisr issue: Berlin Kennedy also had a chance to restore American prestige in another crisis with Cuba. On October 16,1962, photographs taken from an American spy plane revealed that the Soviets were building missile bases on Cuban soil. The Cuban Missle Crisis followed
The Berlin Wall and the Cuban Missile Crisis were both situations that defined the presidency of John F. Kennedy. Chairman Nikita Khrushchev of the Soviet was convinced that since Kennedy did nothing to stop the building of the wall that he would also do nothing about the placement of missiles in Cuba.
The Berlin Crisis of 1961 began with the Soviet Union building a wall between East and West Berlin. The Soviets shut off access to West Berlin. The Allies responded with the Berlin Airlift and the crisis was resolved.
The crisis in Berlin confirmed that a reunited Germany was essential to the future of Europe.
The Berlin Crisis was solved by the Berlin Airlift. For several months in 1961 thousands of tons of supplies were flown into West Berlin. This broke the blockade of Berlin by the Soviets.
Berlin wall.
The Russians caused it by blockading Berlin.
the Berlin wall the separation of west Berlin and east Germany