The Imperial Navy, one of the the "Three Pillars" of The Imperium, is nominally subservient to The Seer Council. As the Imperium grew and became increasingly decentralized, the Navy received ever great latitude in establishing and maintaining bases, shipyards, academies, even research labs. Naturally, administrative authority over materiel production followed. At present, the Navy controls perhaps 20% of the Imperium's economic activity, and ambitious captains instigate border wars in the hopes of subjugating foreign worlds and being charged with administering them.
The Imperial Navy was built around the idea of "Warship Battlegroups" as its organizing principle — singular large battleships accompanied by all the escorts and transports required to conduct a campaign. The Battlegroup was the tactical and strategic building block of the Imperial Navy. The Captain in command of a warship exercised a hefty amount of personal power, often being in charge of several thousand crew and marines between the warship itself, its escorts, and its ancillary vessels.
|Ensign||Junior officer in training|
|Lieutenant||A catch-all for junior officers. Many gradations in official nomenclature existed based on seniority and position. Senior Lieutenants placed in command of a frigate were referred to as "Lieutenant-Commanders" and often commanded two or three junior lieutenants. Conversely, the First Officer of a warship was known as a "First Lieutenant" despite the fact that many such officers actually had a Captain's pay grade, particularly on the ships of commodores and admirals.|
|Captain||The captain of a warship (and therefore its attendant battlegroup).|
|Commodore||The first flag rank, commodores were place in command of squadrons of 3-5 warships. Commodores often held further power in the form of personal possessions which they managed by Imperial mandate.|
|Governor-General||When the Navy has a need for a broader administrator within a sector, it promotes an officer (usually a commodore) to the management of that area.|
|Rear Admiral||The highest rank in a sector fleet, in charge of all naval operations in their sector.|
|Vice Admiral||A provisional position within the Imperial Admiralty board. Selected by the existing Admirals and Grand Admirals, usually in a time of war.|
|Admiral||A full position on the Imperial Admiralty Board, with all the voting rights and often personal power attending to it. Admirals are dispatched to take charge of local forces and have the right to co-opt both regional naval vessels and non-naval local fleets alike.|
|Grand Admiral||The highest rank in the Imperial Navy, Grand Admirals manage the affairs of the entire Imperial fleet. Often too old for field work, their pen strokes can change the fate of the Imperium and its enemies.|