"But they thank Allah, their God, for one man – Idi Amin Dada. It was during the eight years of Amin’s rule 1971-79 that the Muslims as a community made their lasting achievements. For the first time Muslims had come nearer to the corridors of power, finance and education. Although Muslims did not, in any way, participate in bringing Idi Amin into power (as he had done so through a classic military coup), Muslims not only in Uganda but elsewhere provided critical support to Amin. For doing so, they were later to pay a price when Idi Amin was overthrown on April 11, 1979. In reprisal killings, hundreds of Muslims were massacred ..."
... in response to the massacres of hundreds of other Ugandans over 8 years by the muslim-backed Amin.
What goes around, comes around.