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
Regimental Sergeant Major of the Army (Australia) the Army, the RSM-A is responsible to the Chief of Army (CA). The appointment is the equivalent of the Warrant Officer of the Navy (WO-N) in the Royal Australian Navy, and the Warrant Officer of the Air Force (WOFF-AF) in the Royal Australian Air Force. The post was created by the then Chief of Army, Lieutenant General Sir Phillip Bennett. Regimental Sergeant Major of the Army (Australia) Regimental Sergeant Major of the Army (RSM-A) is the most senior Warrant Officer in the Australian Army. It is a singular appointment – it is only held by one person at any time.