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
Air commodore this shape and it is similar in shape to that of a Royal Navy commodore's broad pennant. The vehicle star plate for an air commodore depicts a single white star (air commodore is equivalent to a one-star rank) on an air force blue background. RAF air commodores are classed as air officers and as such have two rows of gold oak leaves on the peak of their service dress hats. The reigning monarch may appoint honorary air commodores for RAF flying squadrons and stations. For example, Prince Charles is RAF Valley's honorary air commodore and Winston Churchill was 615 Squadron's