- Mass Killings: Amin's regime carried out brutal mass killings of political dissidents, ethnic minorities, and suspected opponents. Estimates of the number of people killed range from 100,000 to 500,000.
- Executions without Trial: Amin often ordered executions without trials or due process. Some of the most prominent victims included religious leaders, politicians, and intellectuals.
- Arbitrary Arrests and Detention: Amin's regime routinely carried out arbitrary arrests and detentions without charge. Many detainees were subjected to torture, forced labor, and other forms of ill-treatment.
- Economic Decline: Amin's economic policies led to a sharp decline in the economy. The country's infrastructure was neglected, foreign investment dried up, and inflation skyrocketed.
- Political Repression: Amin's regime suppressed all forms of political dissent. Political parties were banned, the press was censored, and freedom of expression was severely curtailed.
- Persecution of Minority Groups: Amin's regime targeted certain ethnic and religious groups, including the Acholi and Langi people, for persecution. They were subjected to arbitrary killings, forced evictions, and discrimination in education and employment.
- Exile of Asians: In 1972, Amin expelled approximately 80,000 Asians from Uganda, most of whom were of Indian descent. This led to widespread economic disruption and further weakened the country's economy.
- International Isolation: Amin's regime faced international condemnation and isolation for its human rights abuses. Uganda was expelled from the British Commonwealth and subjected to economic sanctions by the international community.
Amin's regime was finally overthrown in 1979 by a Tanzanian-backed invasion force. He fled to Libya and later Saudi Arabia, where he lived in exile until his death in 2003.