Political maneuvering climaxed in February 1966, when Prime Minister Apollo Milton Obote suspended the constitution and assumed all government powers, removing the positions of President and Vice President. In September 1967, a new constitution proclaimed Uganda a republic, gave the President even greater powers, and abolished traditional kingdoms as political entities.
The first major challenge to the Obote government came not from the kingdoms, nor the regional interests, but from the military. In January 1964, units of the Ugandan Army mutinied, demanding higher pay and more rapid promotions. Minister of Defense Onama, who courageously went to speak to the mutineers, was seized and held hostage. Obote was forced to call in British troops to restore order, a humiliating blow to the new regime. In the aftermath, Obote’s government acceded to all the mutineers’ demands, unlike the governments of Kenya and Tanganyika, which responded to similar demands with increased discipline and tighter control over their small military forces.
The military then began to assume a more prominent role in Ugandan life. Obote selected a popular junior officer with minimal education, Idi Amin Dada, and promoted him rapidly through the ranks as a personal protégé. As the army expanded, it became a source of political patronage and of potential political power