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.
