sentences:  This was explained in-universe as a reassignment as liaison to Minbar.Mollari arranges to have this happen in order to help Vir further develop in his career, but privately admits to Delenn that he does not want Vir around with the events - namely the Shadow War - that are soon to come.Vir Cotto remains an important character during the Shadow War arc, which comprises parts of season 3 and 4.