Ousmane Abdoulaye
Acheikh Ibn-Oumar is a Chadian politician and military leader. In the 1980s he led the Democratic Revolutionary Council, a military-political group opposing the government of President Hissène Habré. He studied mathematics in France, and then, in the late 70's, joined the historical Chadian revolutionary mouvement FROLINAT . He held several cabinet positions within the GUNT, led by Goukouni Weddeye . In November 1984, Acheikh Ibn-Oumar was arrested in Tripoli and then transferred to Tibesti where he remained in detention until December 1985, because of serious divergences with both late Colonel Gaddafi and Goukouni. After a short-lived reconciliation with Goukouni, in 1986, Acheikh Ibn-Oumar and the CDR withdrew support for Goukouni Oueddei, leaving Goukouni isolated. Libya switched support from Goukouni to Ibn-Oumar, backing Ibn-Oumar's forces as they took Ennedi in northern Chad, and sending aircraft and tanks to help Ibn-Oumar defend against a counter-attack by Toubou forces loyal to Goukouni. In mid-November 1986, supported by Libya, Ibn-Oumar became president of a newly constituted GUNT, consisting of seven of the original eleven factions. In 1987 Ibn-Oumar's militia was driven into Darfur by French and Chadian forces, fighting the Fur people there.