Idi Amin Kampala suburb of Nakasero became the scene of torture and executions over the next few years. Other agencies used to persecute dissenters included the military police and the Public Safety Unit (PSU). Obote took refuge in Tanzania, having been offered sanctuary there by the Tanzanian President Julius Nyerere. Obote was soon joined by 20,000 Ugandan refugees fleeing Amin. The exiles attempted but failed to regain Uganda in 1972, through a poorly organised coup attempt. Amin retaliated against the attempted invasion by Ugandan exiles in 1972, by purging the army of Obote supporters, predominantly those from the Acholi and Lango ethnic
Idi Amin London. This prominent defection helped Henry Kyemba, Amin's health minister and a former official of the first Obote regime, to defect in 1977 and resettle in the UK. Kyemba wrote and published "A State of Blood", the first insider exposé of Amin's rule. Initially, Amin was supported by Western powers such as Israel, West Germany and, in particular, Great Britain. During the late 1960s, Obote's move to the left, which included his Common Man's Charter and the nationalisation of 80 British companies, had made the West worried that he would pose a threat to Western capitalist interests in Africa and