The Combined Fleet of Righteous Purpose was a massive Covenant fleet, likely comprised of several smaller fleets or battle groups. It was responsible for guarding a portion of the outlying Covenant empire. It was led by the Imperial Admiral Xytan 'Jar Wattinree and consisted of at least four smaller fleets of around at least two hundred ships.
During the Great Schism, the fleet was under the control of the Sangheili. The fleet met with as many other Sangheili-controlled ships as possible at the outpost world of Joyous Exultation to plan a massive counter-offensive against the Jiralhanae and to plan a strategy against the Humans after the Brutes were killed. A number of ships from the fleet left with the Incorruptible for Onyx. Moments later, much of the fleet and the planet were destroyed by a NOVA bomb on the flagship of the fleet - the CSO-class supercarrier Sublime Transcendence. However, due to the large size of the area of space that the fleet was occupying, about two-fifths of the fleet were out of range and survived. Some of these ships went out and reinforced the remaining fleet at Onyx, while the rest likely went to defend Sanghelios. The vessels that travelled to Onyx were later annihilated by the world's Sentinels.
The Jiralhanae, knowing that Joyous Exultation would serve as an anchor point for the Separatist forces, intended to lay siege to the planet. By the time they arrived, however, both the planet and the fleet had been destroyed.
The fleet lost many ships because of the NOVA bomb and a UNSC fleet and Sentinels at Onyx. Because of this, the remaining Covenant Separatists realized that if they couldn't get help soon, the Covenant Loyalists would slaughter them. Later, when the Separatists figured out that the Arbiter had allied with some Humans at Installation 05, the Separatists joined in the new alliance in order to help the Humans exact revenge against the Brutes and the Prophets.
- Sublime Transcendence - Supercarrier, Imperial Admiral Xytan 'Jar Wattinree commanding
- Far Sight Lost - Destroyer, Shipmaster 'Qunu commanding
- Absolution - Destroyer