While relations between the Soviet Union and the United States thawed and then cooled during the Eisenhower era, the Cold War advanced into new regions. The efforts of Iranian, Guatemalan, and Cuban leaders to seize control of their countries’ resources mirrored the surge of nationalism that swept through former European colonies in the 1950s. Following World War II, revolutionary nationalists in the Middle East, Africa, and Southeast Asia toppled colonial governments and wielded the power of their newly liberated regimes to take charge of their own development. Such actions collided with U.S. policy. In a manner first suggested in NSC-68, the Eisenhower administration deployed the CIA to help topple governments considered pro-Communist as well as to promote U.S. economic interests. For example, after Iranian prime minister Mohammed Mossadegh nationalized foreign oil corporations in 1953, the CIA engineered a successful coup that ousted his government and installed the pro-American shah Mohammad Reza Pahlavi in his place. Mossadegh was not a Communist, but by overthrowing him American oil companies obtained 40 percent of Iran’s oil revenue.

In 1954 the economics of fruit and shipping replaced oil as the catalyst for U.S. intervention. The elected socialist regime of Jacobo Arbenz Guzmán in Guatemala had seized 225,000 acres of land held by the United Fruit Company, a powerful American company in which Secretary of State John Foster Dulles and his brother, CIA director Allen Dulles, held stock. According to the Dulles brothers, the land’s seizure by the Guatemalan government posed a threat to the nearby Panama Canal. Eisenhower allowed the CIA to hatch a plot that resulted in a coup d’état, or government overthrow, that installed a right-wing military regime in Guatemala, which safeguarded both the Panama Canal and the United Fruit Company.

The success of the CIA’s covert efforts in Guatemala prompted the Eisenhower administration to plan a similar action in Cuba, ninety miles off the coast of Florida. In 1959 Fidel Castro led an uprising and came to power in Cuba after overthrowing the American-backed dictator Fulgencio Batista. A Cuban nationalist in the tradition of José Martí, Castro sought to regain full control over his country’s economic resources, including those owned by U.S. corporations. He appropriated $1 billion worth of American property and signed a trade agreement with the Soviet Union. To consolidate his political rule, Castro jailed opponents and installed a Communist regime. In 1960 President Eisenhower authorized the CIA to design a clandestine operation to overthrow the Castro government, but he left office before the invasion could occur.

The United States and the Soviet Union each tried to gain influence over emerging nations. Many newly independent countries tried to practice neutrality in foreign affairs, accepting aid from both of the Cold War protagonists. Nonetheless, they were often drawn into East-West conflicts.

Such was the case in Egypt, which achieved independence from Great Britain in 1952. Two years later, under General Gamal Abdel Nasser, the country sought to modernize its economy by building the hydroelectric Aswan Dam on the Nile River. Nasser welcomed financial backing from the United States and the Soviet Union, but the Eisenhower administration refused to contribute so long as the Egyptians accepted Soviet assistance. In 1956 Nasser, falling short of funds, sent troops to take over the Suez Canal, the waterway run by Great Britain and through which the bulk of Western Europe’s oil was shipped. He intended to pay for the dam by collecting tolls from canal users. In retaliation, Britain and France, the two European powers most affected by the seizure, invaded Egypt on October 29, 1956. Locked in a struggle with Egypt and other Arab nations since its creation in 1948, Israel joined in the attack. The invading forces—all U.S. allies—had not warned the Eisenhower administration of their plans. Coming at the same time as the Soviet crackdown against the Hungarian revolution, the British-French-Israeli assault placed the United States in the difficult position of condemning the Soviets for intervening in Hungary while its anti-Communist partners waged war in Suez. Instead, Eisenhower cooperated with the United Nations to negotiate a cease-fire and engineer a pullout of the invading forces in Egypt. Ultimately, the Soviets proved the winners in this Cold War skirmish. The Suez invasion revived memories of European imperialism and fueled anti-Western sentiments and pan-Arab nationalism (a sense of unity among Arabs across national boundaries), which worked to the Soviets’ advantage.

The Eisenhower administration soon moved to counter growing Soviet power in the region. In 1957, to throttle increasing Communist influence in the Middle East, Congress approved the Eisenhower Doctrine, which gave the president a free hand to use U.S. military forces in the Middle East “against overt armed aggression from any nation controlled by International Communism.” In actuality, the Eisenhower administration proved more concerned with protecting access to oil fields from hostile Arab nationalist leaders than with any Communist incursion. In 1958, when an anti-American, non-Communist regime came to power in Iraq, the president sent 14,000 marines to neighboring Lebanon to prevent a similar outcome there.

Just before Eisenhower left office in January 1961, his administration intervened in a civil war in the newly independent Congo. This former colony of Belgium held valuable mineral resources, which Belgium and the United States coveted. After the Congo’s first prime minister, Patrice Lumumba, stated his intentions to remain neutral in the Cold War, President Eisenhower and CIA director Allen Dulles declared him unreliable in the conflict with the Soviet Union. With the support of Belgian military troops and encouragement from the United States, the resource-rich province of Katanga seceded from the Congo in 1960. After the Congolese military, under the leadership of Joseph Mobuto, overthrew Lumumba’s government, the CIA launched an operation that culminated in the execution of Lumumba on January 17, 1961. Several years later, Mobuto became president of the country, changed its name to Zaire, and allied with the West.