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
Captain general of the Army Captain general of the Army Captain General () has been the highest rank in the Spanish Army ("Ejército de Tierra") since the 18th century. A five-star rank with NATO code OF-10, it is equivalent to a field marshal of the armies of numerous countries, a general of the Army of the United States, a captain general of the Spanish Navy "(Armada Española)" or an Captain general of the Air Force in the Spanish Air Force "(Ejército del Aire)". A Captain General's insignia consists of two command sticks under five four-pointed stars below the Royal Crown. A personal rank of "captain