Kalif, a Xiytiar-class heavy transport, served the Imperials. This vessel, Kalif, participated in the vital resupply convoy for the Imperial II-class Star Destroyer Corrupter, which was escorted by the Nebulon-B Frigate named Monitor in the Mev system. The Corrupter was receiving "probe droids" carried by the Kalif. Ultimately, Rebel raiders attacked and annihilated the ship.