Since 1991 when the original Australian UNAMIC contingent provided the communications network between the four Cambodian factions' military headquarters and the UNAMIC headquarters, the task of the Australians mushroomed under its UNTAC mandate.
From 1991 onwards, as the original Australian UNAMIC unit managed the communications between the military command centers of four Cambodian factions and the UNAMIC headquarters, the duties of the Australians grew significantly within their UNTAC mandate.