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
Commodore (Royal Navy) although in both cases as an appointment rather than a rank. During World War I the title of "Commodore (T)" was the officer who commanded torpedo boat flotillas. From 1570 to 1864 the Royal Navy was divided into colored squadrons which determined an officer's career path. A modern commodore's rank insignia consists of a 45-millimetre-wide band of gold lace, with a circle of 13-millimetre-wide lace 45 millimetres in diameter above. <br> Commodore (Royal Navy) Commodore (Cdre) is a rank of the Royal Navy above captain and below rear admiral. It has a NATO ranking code of OF-6. The rank is