Union Navy the set of Army ranks. The most visible change was that henceforth some individuals would be designated commodore, rear admiral, vice admiral, and finally admiral, all new formal ranks, and equivalent to, respectively, brigadier general, major general, lieutenant general, and general. A doctrinal shift took place at the same time. Prior to the war, the United States Navy emphasized single-ship operations, but the nature of the conflict soon made use of whole fleets necessary. Already at the Battle of Port Royal (7 November 1861), 77 vessels, including 19 warships, were employed. This was the largest naval expedition that had ever
History of the Royal Navy Trafalgar consolidated the United Kingdom's advantage over other European maritime powers, but Nelson was killed during the battle. By concentrating its military resources in the navy, Britain could both defend itself and project its power across the oceans as well as threaten rivals' ocean trading routes. Britain therefore needed to maintain only a relatively small, highly mobile, professional army that sailed to where it was needed, and was supported by the navy with bombardment, movement, supplies and reinforcement. The Navy could cut off enemies' sea-borne supplies, as with Napoleon's army in Egypt. Theoretically, the highest commands of the Royal Navy