Idi Amin of Amin's ministers defected or fled into exile. In November 1978, after Amin's vice president, General Mustafa Adrisi, was injured in a car crash, troops loyal to him mutinied. Amin sent troops against the mutineers, some of whom had fled across the Tanzanian border. Amin accused Tanzanian President Julius Nyerere of waging war against Uganda, ordered the invasion of Tanzanian territory, and formally annexed a section of the Kagera Region across the boundary. In January 1979, Nyerere mobilised the Tanzania People's Defence Force and counterattacked, joined by several groups of Ugandan exiles who had united as the Uganda National Liberation
Idi Amin school with only a fourth-grade English-language education, and did odd jobs before being recruited to the army by a British colonial army officer. Amin joined the King's African Rifles (KAR) of the British Colonial Army in 1946 as an assistant cook. In later life, he falsely claimed he was forced to join the armies during World War II and that he served in the Burma Campaign. He was transferred to Kenya for infantry service as a private in 1947, and served in the 21st KAR infantry battalion in Gilgil, Kenya until 1949. That year, his unit was deployed to northern