The UNSC Glorious was a frigate of the UNSC Defense Fleet. Shortly after the Human-Covenant War and the establishment of the UNSC embassy on Sangheilios, after the outbreak of hostilities, it was dispatched with the UNSC Memory of Harvest to withdraw the Marine garrison on Sangheilios. Several months after the war upon its arrival at Sangheilios, the majority of the five Marine battalions were withdrawn to the Glorious and the Memory of Harvest.