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
Mohammad-Amin Riahi classical Persian texts such as "Mersad-al-ebad" and "Nozhat-al-majalis". During a course of 60 years he published numerous scholarly articles, a selection of which are gathered in a volume titled "Forty essays on language, literature and history of Iran". Among numerous cultural positions he held during his career, Riahi was a professor of Tehran University, the founding member and later president of the Shahnameh Foundation (1971–1979), vice-chairman of the Iranian Academy of Literature and Arts, and Iranian Minister of Education (1979). "Critical Editions of old Persian books:" "Literary and Historical research books:" "Some of Encyclopedic Articles:" Mohammad-Amin Riahi Mohammad-Amin Riahi (;