معاوية ولد سيدي أحمد الطايع
A military coup on 3 August 2005, led by Ely Ould Mohamed Vall, Director-General of the "Sûreté Nationale", and Colonel Abdel Aziz, who was commander of the Presidential Guard (BASEP), overthrew President Maaouya Ould Sid'Ahmed Taya. Colonel Abdel Aziz was said at the time to be one of the main actors in the actual carrying out of this coup.