Rubuta ci gaba don wannan sakin layi - Matsanga na ɗaya daga cikin shugabannin 'yan bindigar Ninja masu biyayya ga shugaban adawa Bernard Kolélas a lokacin tashin hankali na siyasa na 1993-1994, wanda' yan bindiga masu hamayya suka yi yaƙi a Brazzaville. A farkon yakin basasa na Yuni-Oktoba 1997
, ya tsallake zuwa gefen Denis Sassou Nguesso da 'yan tawayen Cobra.