The document summarizes key events in US foreign policy during the early 1960s under presidents Kennedy and Johnson. It describes the failed Bay of Pigs invasion, the Berlin Crisis and Kennedy's confrontation with Khrushchev over Soviet missiles in Cuba, known as the Cuban Missile Crisis. It also discusses Kennedy's Alliance for Progress initiative to promote economic development in Latin America and the establishment of the Peace Corps. The summary concludes by noting Johnson's continuation of containment policies against communism, including sending troops to the Dominican Republic and military advisors to South Vietnam.