Supreme Commander

Supreme Commander was a military rank within the armed forces of the Covenant empire and its successor factions, roughly analagous to the rank of Fleet Admiral within the UNSC Navy. In the Covenant, they consisted of fleetmasters selected by the Hierarchs to lead ministerial fleets on major expeditionary missions.

Role and responsibilities
Within a given armada, a Supreme Commander served as the lead fleetmaster among the several present, with each subordinate fleetmaster tasked with maintaining their own fleet forces. Within these formations, the word of the Supreme Commander was law, and only the actions of their sponsoring ministry, the High Council, or the Hierarchs themselves could countermand their orders. As such, they held extremely large amounts of power and independence - even moreso than their United Nations Space Command counterparts. The political machinations of the Supreme Commander allowed them to outfit and service their own ships, and they served as the sole senior officer to a Field Marshal. To assist in their duties, Covenant fleets often assigned a Precentor - a San'Shyuum official tasked with reporting directly to High Charity and serving as a mediator for the Supreme Commander among other duties. These officials were often the only officials within the fleet with authority capable of challenging the Supreme Commander's decrees.

Within the Covenant's successor factions, the warlord Jul 'Mdama has adopted the title of Supreme Commander - though this title is sometimes used interchangeably with the title of "Supreme Leader".

Dress
The typical garb for a Sangheili Supreme Commander was a golden-coloured combat harness, of various styles. During fleet command operations, they, like other shipmasters, often donned a purple-coloured cloak alongside this armour. However, this was not always the case, with some Supreme Commanders electing to forgo the cloak during engagements, or even during formal ceremonies in front of the High Council.

During the Battle of Installation 04, Supreme Commander Thel 'Vadamee wore purple armor with a purple ornate helmet, draped in his purple doarmir cloak while commanding the Fleet of Particular Justice. His cloak served a purely sentimental purpose, as it reminded him that he could make grave mistakes if he let his guard down.

Pre-Covenant

 * Ophon 'Qaram - An ancient Sangheili Supreme Commander during the War of Beginnings, famed for his refusal to join the Covenant.

Covenant-era

 * Rho 'Barutamee - Supreme Commander of the Fleet of Valiant Prudence.
 * Luro 'Taralumee - Supreme Commander of the Third Fleet of Glorious Consequence.
 * Thel 'Vadamee - Supreme Commander of the Fleet of Particular Justice throughout the Human-Covenant War.

Post-Covenant

 * Jul 'Mdama - Supreme Commander of his remnant forces, also dubbed "Supreme Leader" in his faction.

List of appearances

 * Halo: The Fall of Reach
 * Adjunct
 * Halo 2
 * Halo Graphic Novel
 * Last Voyage of the Infinite Succor
 * Halo: Ghosts of Onyx
 * Halo Wars
 * Halo Legends
 * The Package
 * Halo: Broken Circle
 * Halo 2: Anniversary
 * ''Terminals
 * Halo: Fleet Battles
 * Halo Mythos