Mahamat Déby
Idriss Déby Itno (18 June 1952 – 20 April 2021) was a Chadian politician and military officer who was the president of Chad from 1990 until his death in 2021 during the Northern Chad offensive. His term of office of more than 30 years makes him Chad's longest-serving president. Déby was a member of the Bidayat clan of the Zaghawa ethnic group. Wikipedia