The instability began immediately. Ponce was so angry over Velasco's vicious campaign attacks on his government that he resigned on his last day in office rather than preside over the inauguration of his successor. During his campaign, "the National Personification" had promised government support to the masses of urban poor, many of whom had recently migrated to Guayaquil and other major cities in search of a decent job and a place to live. Velasco's populism continued into his inaugural address, when he renounced the hated 1942 Rio Protocol. He thus came to power with the adoration of the masses, but he saddled himself with expensive commitments to the poor at a time when deficits in the state coffers were approaching a critical level. Additionally, Velasco threatened Ecuador's shaky economy with what amounted to a declaration of hostilities against Peru and the guarantors of the Rio Protocol, namely Argentina, Brazil, Chile, and the United States.

Sensing the direction of the political wind in the wake of the Cuban Revolution, Velasco magnified his anti-United States rhetoric and included leftists in his government. Meanwhile, the United States encouraged Latin American governments to break diplomatic relations with Cuba. Before long, Ecuador's widening political polarization became manifest in outbreaks of violence between leftist students and the anticommunist right.

The rapidly deteriorating economic situation soon brought about a split in the velasquista coalition, however, with the left, led by Vice President Carlos Julio Arosemena Monroy [who was also president of the Chamber of Deputies] openly opposing the government in July 1961. By October relations between Velasco's government and Congress had deteriorated to the point where legislators and progovernment spectators engaged in a gun battle. Although dozens of bullet holes were later found in the Chamber, no one was injured.

A series of new sales taxes imposed during the same month in order to raise desperately needed revenues then sparked a general strike and a series of demonstrations and riots in several major cities. Amid growing chaos, Velasco ordered the arrest of his vice president, a move that opened him to charges of violating the constitution. On November 8, after only fourteen months in office, Velasco was ousted by the military and replaced by Arosemena, who was his constitutional successor as well as his leading opponent.

Arosemena came from a well-known Guayaquil family; his father had briefly served as president following a previous anti-Velasco coup in 1947. In an attempt to allay concerns about his being a dangerous leftist [as Velasco's vice president he had expressed warm sympathy for Cuban leader Fidel Castro Ruz and made a much- criticized trip to the Soviet Union], Arosemena named a cabinet that included Liberals and even Conservatives and quickly sent former President Galo Plaza on a goodwill trip to Washington.

Arosemena's insistence on maintaining relations with Cuba, however, became a major domestic political issue in Ecuador. Political opponents labeled Arosemena a dangerous communist, and part of the military went into open rebellion in March 1962. The following month, Ecuador broke diplomatic relations with Cuba, Poland, and Czechoslovakia. The crisis over Cuba proved to be very costly for Arosemena, who lost not only much of his local political support, but also the self-confidence to pursue his own, independent course. Afterward, the government drifted with little leadership from the president, who allegedly indulged in frequent drinking bouts.

The brief appearance of a guerrilla movement in the coastal jungle and a rash of small-scale terrorist incidents [many of which later were found to have been staged by right-wing provocateurs] also left Arosemena open to accusations of being either unable or unwilling to stop communist subversion. By early 1963, military conspiracy was again afoot. On July 11 the high command of the armed forces decided, without dissent, to depose Arosemena.

The four-man military junta that seized power announced its intention not to return the nation to constitutional rule until the institution of basic socioeconomic reforms, which both Velasco and Arosemena had promised but never implemented. This failure by their two civilian predecessors, the junta believed, had become a source of growing frustration within the lower classes, thus making them more receptive to the lure of communism. The junta combined its reformist anticommunism with the more traditional hard-line variety. After jailing or exiling the entire leadership of the communist left, the new government reorganized the nation's two leading universities in an effort to eliminate them as sources of left-wing political activity.

In July 1964, the junta decreed the Agrarian Reform Law to commemorate the first anniversary of its assumption of power. The law abolished the huasipungo system, the feudalistic land tenure arrangement widely used in the Sierra. However, the law resulted in little real improvement in the lives of the long-suffering Sierra peasants and died from lack of funding under subsequent civilian governments.

Meaningful reform was precluded, in part at least, by the increasingly cumbersome process of decision making within the politically heterogeneous, plural executive. Insubordination by the air force representative on the junta led to his dismissal and arrest in November 1965;