The Bay of Pigs Invasion (Spanish: invasin de baha de Cochinos; sometimes called invasin de playa Girn or batalla de Girn, after the Playa Girn) was a failed landing operation on the southwestern coast of Cuba in 1961 by Cuban exiles who opposed Fidel Castro's Cuban Revolution, covertly financed and directed by the U.S. government. The operation took place at the height of the Cold War, and its failure influenced relations between Cuba, the United States, and the Soviet Union.

In 1952, American ally General Fulgencio Batista led a coup against President Carlos Pro and forced Pro into exile in Miami, Florida. Pro's exile inspired the creation of the 26th of July Movement against Batista by Castro. The movement successfully completed the Cuban Revolution in December 1958. Castro nationalized American businessesincluding banks, oil refineries, and sugar and coffee plantationsthen severed Cuba's formerly close relations with the United States and reached out to its Cold War rival, the Soviet Union. In response, U.S. President Dwight D. Eisenhower allocated $13.1 million to the Central Intelligence Agency (CIA) in March 1960, for use against Castro. With the aid of Cuban counter-revolutionaries, the CIA proceeded to organize an invasion operation.

After Castro's victory, Cuban exiles who had traveled to the U.S. had formed the counter-revolutionary military unit Brigade 2506. The brigade fronted the armed wing of the Democratic Revolutionary Front (DRF), and its purpose was to overthrow Castro's government. The CIA funded the brigade, which also included some U.S. military personnel, and trained the unit in Guatemala.

Over 1,400 paramilitaries, divided into five infantry battalions and one paratrooper battalion, assembled and launched from Guatemala and Nicaragua by boat on 17 April 1961. Two days earlier, eight CIA-supplied B-26 bombers had attacked Cuban airfields and then returned to the U.S. On the night of 17 April, the main invasion force landed on the beach at Playa Girn in the Bay of Pigs, where it overwhelmed a local revolutionary militia. Initially, Jos Ramn Fernndez led the Cuban Army counter-offensive; later, Castro took personal control. As the invaders lost the strategic initiative, the international community found out about the invasion, and U.S. President John F. Kennedy decided to withhold further air support. The plan devised during Eisenhower's presidency had required involvement of both air and naval forces. Without air support, the invasion was being conducted with fewer forces than the CIA had deemed necessary. The invading force was defeated within three days by the Cuban Revolutionary Armed Forces (Spanish: Fuerzas Armadas Revolucionarias FAR) and the invaders surrendered on 20 April. Most of the invading counter-revolutionary troops were publicly interrogated and put into Cuban prisons.

The invasion was a U.S. foreign policy failure. The invasion's defeat solidified Castro's role as a national hero and widened the political division between the two formerly-allied countries. It also pushed Cuba closer to the Soviet Union, setting the stage for the Cuban Missile Crisis in 1962.

Dwight David "Ike" Eisenhower (born David Dwight Eisenhower; ; October 14, 1890 – March 28, 1969) was an American military officer and statesman who served as the 34th president of the United States from 1953 to 1961. During World War II, he served as Supreme Commander of the Allied Expeditionary Force in Europe, and achieved the five-star rank of General of the Army. He planned and supervised the invasion of North Africa in Operation Torch in 1942–1943 and the invasion of Normandy from the Western Front in 1944–1945.

Eisenhower was born into a large family of mostly Pennsylvania Dutch ancestry in Denison, Texas, and raised in Abilene, Kansas. His family had a strong religious background, and his mother became a Jehovah's Witness. Eisenhower, however, belonged to no organized church until 1952. He graduated from West Point in 1915 and later married Mamie Doud, with whom he had two sons. During World War I, he was denied a request to serve in Europe and instead commanded a unit that trained tank crews. Following the war, he served under various generals and was promoted to the rank of brigadier general in 1941. After the United States entered World War II, Eisenhower oversaw the invasions of North Africa and Sicily before supervising the invasions of France and Germany. After the war, he served as Army Chief of Staff (1945–1948), as president of Columbia University (1948–1953) and as the first Supreme Commander of NATO (1951–1952).

In 1952, Eisenhower entered the presidential race as a Republican to block the isolationist foreign policies of Senator Robert A. Taft, who opposed NATO and wanted no foreign entanglements. Eisenhower won that election and the 1956 election in landslides, both times defeating Adlai Stevenson II. Eisenhower's main goals in office were to contain the spread of communism and reduce federal deficits. In 1953, he considered using nuclear weapons to end the Korean War, and may have threatened China with nuclear attack if an armistice was not reached quickly. China did agree and an armistice resulted which remains in effect. His New Look policy of nuclear deterrence prioritized inexpensive nuclear weapons while reducing funding for expensive Army divisions. He continued Harry S. Truman's policy of recognizing Taiwan as the legitimate government of China, and he won congressional approval of the Formosa Resolution. His administration provided major aid to help the French fight off Vietnamese Communists in the First Indochina War. After the French left, he gave strong financial support to the new state of South Vietnam. He supported regime-changing military coups in Iran and Guatemala orchestrated by his own administration. During the Suez Crisis of 1956, he condemned the Israeli, British, and French invasion of Egypt, and he forced them to withdraw. He also condemned the Soviet invasion during the Hungarian Revolution of 1956 but took no action. After the Soviet Union launched Sputnik in 1957, Eisenhower authorized the establishment of NASA, which led to the Space Race. He deployed 15,000 soldiers during the 1958 Lebanon crisis. Near the end of his term, he failed to set up a summit meeting with the Soviets when a U.S. spy plane was shot down over the Soviet Union. He approved the Bay of Pigs Invasion, which was left to John F. Kennedy to carry out.

On the domestic front, Eisenhower was a moderate conservative who continued New Deal agencies and expanded Social Security. He covertly opposed Joseph McCarthy and contributed to the end of McCarthyism by openly invoking executive privilege. He signed the Civil Rights Act of 1957 and sent Army troops to enforce federal court orders which integrated schools in Little Rock, Arkansas. His largest program was the Interstate Highway System. He promoted the establishment of strong science education via the National Defense Education Act. His two terms saw unprecedented economic prosperity except for a minor recession in 1958. In his farewell address to the nation, he expressed his concerns about the dangers of massive military spending, particularly deficit spending and government contracts to private military manufacturers, which he dubbed "the military–industrial complex". Historical evaluations of his presidency place him among the upper tier of American presidents.