The Transitional Government of National Unity (Gouvernement d'Union Nationale de Transition or GUNT) was the coalition government of armed groups that nominally ruled Chad from 1979 to 1982, during the most chaotic phase of the long-running civil war that began in 1965. The GUNT replaced the fragile alliance led by Félix Malloum and Hissène Habré, which collapsed in February 1979. GUNT was characterized by intense rivalries that led to armed confrontations and the Libyan intervention in 1980. Libya intervened in support of the GUNT's President Goukouni Oueddei against the former GUNT Defence Minister Hissène Habré.