During his father's presidency, he was Minister of Foreign Affairs from 1989 to 1991 and represented Bongoville as a Deputy in the National Assembly from 1991 to 1999; subsequently he was Minister of Defense from 1999 to 2009.
Selama masa kepresidenan ayahnya, ia adalah Menteri Luar Negeri dari 1989 sampai 1991 dan mewakili Bongoville sebagai Deputi Majelis Nasional dari 1991 sampai 1999, kemudian dia juga menjadi Menteri Pertahanan periode 1999–2009.