The Imperial Navy was formed from the Republic Navy of the Old Republic. Under the Non-huMan rule, the vast majority of personnel in the Imperial Starfleet were male Humans, although some Human females, such as Admiral Daala, and even other species were also in the service, such as the Chiss Grand Admiral Thrawn. The Imperial Navy conducted itself by the Imperial Naval Code, a set of martial laws and regulations created to guide the massive military organization. The Imperial Navy was formed from the Republic Navy, and as such was still under Naval Command. The Imperial Navy also performed orbital bombardments, transported major ground force deployments, and supported them with space and aerial support. Specific responsibilities of the Imperial Navy included defending Imperial citizens from space-based threats such as pirates, smugglers, and other armed governments, enforcing Imperial will, and overseeing commerce through customs and blockade operations. The Star Destroyer and Super Star Destroyer capital ships and the TIE fighter series of starfighters became some of the most visible symbols of Imperial rule to the galaxy's civilian populace. The Imperial Navy was one of the most formidable militaries ever assembled, consisting of millions of warships, fighters and transports, manned by trillions of fleet crew. Growing discontent with the Empire eventually coalesced into the Alliance to Restore the Republic, which began a military campaign against Imperial forces, that became known as the Galactic Civil War. A reorganized command structure, eventually consisting of twelve Grand Admirals, oversaw the rapid expansion of the fleet that had begun during the Clone War. 50 BBY, as part of the Empire's Imperialization campaign. The Imperial Starfleet was formed from the Republic Starfleet of the Old Republic in c. At its peak, it fielded millions of warships, logistics vessels and fighters, maintaining Imperial control throughout the Galaxy. The Imperial Starfleet, also known as the Imperial Fleet, Imperial Battlefleet, Imperial Navy, or Imperial Space Service, was the naval branch of the Imperial Military of the Galactic Empire.

Imperious class star destroyer