Final answer:
Idi Amin, known as the 'Butcher of Uganda,' was the brutal dictator of Uganda responsible for the deaths of between 100,000 to 500,000 people. His regime was characterized by severe human rights abuses and led to the country's economic devastation.
Step-by-step explanation:
The dictator of Uganda who was nicknamed the "Butcher of Uganda" and is estimated to have killed between 100,000 to 500,000 people was Idi Amin. He came to power in 1971 and his regime was marked by widespread human rights abuses, political repression, ethnic persecution, and extrajudicial killings. Idi Amin sought to rid the country of his opponents and many foreigners, leading to the death of many of Uganda's own citizens and significant damage to the country's economy. Amin was ousted from power in 1979 and lived the rest of his life in exile in Saudi Arabia.
Similar human rights abuses committed by authoritarian governments were seen across Africa, with armed conflicts and ethnic violence leading to many atrocities. For instance, the genocide in Rwanda in 1994 left approximately 800,000 people dead. The conflict in Uganda, including its involvement in the Congo Wars, exemplifies the turmoil and suffering associated with military dictatorships and ethnic divisions in African nations.