 He commanded a rebel section of the Army during two days of heavy fighting in Nouakchott.With the failure of the coup Hanenna initially escaped capture, and formed a group called the Knights of Change with Mohamed Ould Cheikhna, but he was arrested on October 9, 2004.General Mohamed Ould Abdel Aziz, a career soldier and high-ranking officer, was a leading figure in the 2005 Mauritanian coup d'état that deposed President Maaouya Ould Sid'Ahmed Taya.