Foreign policy

President Kennedy's foreign policy was dominated by American confrontations with the Soviet Union, manifested by proxy contests in the early stage of the Cold War. In 1961, Kennedy anxiously anticipated a summit with Soviet Premier Nikita Khrushchev. The President started off on the wrong foot by reacting aggressively to a routine Khrushchev speech on Cold War confrontation in early 1961. The speech was intended for domestic audiences in the Soviet Union, but Kennedy interpreted it as a personal challenge. His mistake helped raise tensions going into the Vienna Summit of June 1961. On the way to the summit, Kennedy stopped in Paris to meet Charles de Gaulle, who advised Kennedy to ignore Khrushchev's abrasive style. The French president was nationalistic and disdainful of the United States' presumed influence in Europe. Nevertheless de Gaulle was quite impressed with the young president and his family. Kennedy picked up on this in his speech in Paris, saying he would be remembered as "the man who accompanied Jackie Kennedy to Paris."

Persian Shah Mohammad Reza Pahlavi, Kennedy, and U.S. Defense Secretary Robert McNamara in the White House Cabinet Room on April 13, 1962

On June 4, 1961, the president met with Khrushchev in Vienna and left the meetings angry and disappointed that he had allowed the Premier to bully him, despite the warnings he had received. Khrushchev, for his part, was impressed with the president's intelligence, but thought him weak. Kennedy did succeed in conveying the bottom line to Khrushchev on the most sensitive issue before them, a proposed treaty between Moscow and East Berlin. He made it clear that any such treaty which interfered with U.S access rights in West Berlin would be regarded as an act of war.

Shortly after the president returned home, the U.S.S.R. announced its intention to sign a treaty with East Berlin, abrogating any third-party occupation rights in either sector of the city. Kennedy, depressed and angry, assumed his only option was to prepare the country for nuclear war, which he personally thought had a one in five chance of occurring.
In the weeks immediately after the Vienna summit, more than 20,000 people fled from East Berlin to the western sector in reaction to statements from the USSR. Kennedy began intensive meetings on the Berlin issue, where Dean Acheson took the lead in recommending a military buildup alongside NATO allies. In a July 1961 speech, Kennedy announced his decision to add $3.25 billion to the defense budget, along with over 200,000 additional troops, saying an attack on West Berlin would be taken as an attack on the U.S. The speech received an 85% approval rating. The following month, the Soviet Union and East Berlin began blocking any further passage of East Berliners into West Berlin and erected barbed wire fences across the city, which were quickly upgraded to the Berlin Wall. Kennedy's initial reaction was to ignore this, as long as free access from West to East Berlin continued. This course was altered when it was learned that the West Berliners had lost confidence in the defense of their position by the United States. Kennedy sent Vice President Johnson, along with a host of military personnel, in convoy through West Germany, including Soviet armed checkpoints, to demonstrate the continued commitment of the U.S. to West Berlin.
Kennedy gave a speech at Saint Anselm College on May 5, 1960, regarding America's conduct in the emerging Cold War. The address detailed how American foreign policy should be conducted towards African nations, noting a hint of support for modern African nationalism by saying that "For we, too, founded a new nation on revolt from colonial rule".