Complex sentence: He led the African Department until August 1992 when he was sent as Algeria's ambassador to Mali where he secured a peace deal between the warring Malian government and the Azawad Touareg movement, with his "Pacte National" treaty.
Split into simpler sentences: He led the African Department until August 1992, when he was sent as Algeria's ambassador to Mali. In Mali, he secured a peace deal between the warring Malian government and the Azawad Touareg movement, with his "Pacte National" treaty.