Vasu previously served in the Republic of Fiji Military Forces, reaching the rank of lieutenant colonel.[2] He did not participate in the 1987, 2000, or 2006 coups, being in training or overseas at the time. Following the 2006 Fijian coup d'état he was appointed as commissioner for the Eastern District by the Bainamarama regime.[3] In 2011 he was appointed Corrections Service Commissioner.[4][5] As corrections commissioner he oversaw the imprisonment of former prime minister Laisenia Qarase.[6]