During the events referred to in the indictment, Gvero was serving at Mladic's wartime headquarters as the VRS Main Staff's assistant commander for morale, legal and religious affairs.
U vreme događaja koji se pominju u optužnici, Gvero je obavljao dužnost u Mladićevom ratnom štabu, u svojstvu pomoćnika komandanta glavnog štaba VRS za moral, pravna i verska pitanja.