Imperial Navy ( Sith Empire ) The Imperial Navy , also called the Imperial Armada , was the naval branch of the Sith Empire ' s Imperial military . It fought against the Galactic Republic during the Great Galactic War and was maintained in the Cold War that followed . The Navy fielded a large fleet of warships of various classes throughout the War . It was constructed over centuries by orders of Grand Moff Odile Vaiken , who knew that he would not live to see a fraction of it complete . History . When the original Sith Empire of Naga Sadow collapsed and the Sith went into exile in the Unknown Regions , the navy shrunk to a small group of ships used to travel by the remnant . After finding refuge on Dromund Kaas , the Sith began a massive build up of military forces under Grand Moff Odile Vaiken . He started construction on a massive armada that took nearly three centuries to complete , knowing he would not be alive when it was done . All non - Force - sensitive people living on Dromund Kaas were conscripted either into the Navy or the Imperial Army . Vaiken died during the first operation undertaken by the Navy , Odile Vaiken ' s final campaign against an alien race . During the Great Galactic War , the Navy proved to be a vital component of the military . They transported Army troops to various worlds , taking part in various engagements with the Republic Navy . Those included Skirmish in the Tingel Arm , and the first and second Battles of Bothawui . In the final act of the war , a massive fleet was used to sack Coruscant , the capital of the Galactic Republic . It led to the Treaty of Coruscant , causing the Navy to stop activities . Organization . The Imperial Navy was the naval branch of the Imperial Military , and was overseen by the Ministry of War alongside the Army . Ranks . Grand Admiral Admiral Commodore Group Captain Captain Lieutenant Ensign Petty Officer Corporal Specialist Private Order of Battle . Imperial Fleet Command Imperial Forward Command Equipment . The primary vessel of the Navy was the " Harrower " - class dreadnought , a massive dreadnaught produced by Taerab Starship Manufacturing and measuring approximately 800 meters in length , that required a crew of 2 , 400 and carried a troop complement of 7 , 300 . The " Harrower " - class was supported by the smaller " Terminus " - class destroyer , which was operated by 520 crewman and carried only 285 troops , and the even smaller " Gage " - class transport . The two main shuttles used by the Sith Empire were the Imperial shuttle and the Imperial assault shuttle . The Navy deployed a number of starfighters — the Mark VI " Supremacy " - class starfighter and its numerous advanced models were the standard starfighter of the Navy , and they made use of B28 " Extinction " - class bombers as well as a variety of transports , assault craft , shuttles , and cruisers . Ships . Dreadnoughts . Dreadnoughts were the largest of the Empire ' s battleships . They represented the true power of the armada . Only one type of dreadnought was known : Destroyers . Ships smaller than cruisers ( and usually larger than frigates , though not always ) but armed to the teeth with a variety of weapons . They mostly act as escorts for larger fleets ( and likely not for single warships , but exceptions would certainly exist ) . The destroyers fulfill all sorts of roles because of how multi - purpose they are , even roles that could be fulfilled by other classes that are designed for that purpose . Most famous in the Empire is the :