The Ministry of War functioned as a crucial component within the tripartite governing structure of the Sith Empire.
The operation of all segments of the Imperial Military fell under the purview of the Ministry of War, with the Minister of War at its helm. Subordinate to the Minister were moffs, responsible for upholding military order. While the Minister was accountable to all members of the Dark Council, the Ministry maintained particularly close operational ties with the spheres dedicated to the Defense of the Empire, Military Offense, and Military Strategy.
A primary concern for the ministry was the Imperial Navy. Following the Great Galactic War, the Ministry dedicated efforts to reconstructing the Sith armada, successfully upgrading numerous older weapon systems with enhanced replacements. Furthermore, the Ministry held responsibility for the Imperial Army, the Empire's terrestrial forces. Additional domains under the Ministry's control encompassed soldier deployments, combat strategies, special forces, clandestine operations, and overarching war strategy. A key duty of the Ministry was guaranteeing that all Spheres of Influence were adequately supplied with military garrisons.
The Ministry's recruitment arm for mercenaries strategically hired capable freelance experts for service to the Empire.
In 3640 BBY, following the Star Cabal's manipulations which resulted in the dissolution of the Operations Division of Imperial Intelligence, personnel from the Ministry of War, under the command of Lord Razer, entered Imperial Intelligence headquarters at the Citadel to oversee the transfer of assets to the Sith and the military.
During the Battle of Corellia, the Ministry announced a reward for the assassination of members belonging to the Green Jedi Enclave and their allied Republic forces.