Admiralty
It evolved from *Admiralty Navy War Council, (1909–1912) which in turn became the Admiralty War Staff, (1912–1917) before finally becoming the Admiralty Naval Staff in 1917. It was the former senior command, operational planning, policy and strategy department within the British Admiralty. It was established in 1917 and existed until 1964 when the department of the Admiralty was abolished, and the staff departments function continued within the Navy Department of the Ministry of Defence until 1971 when its functions became part of the new Naval Staff, Navy Department of the Ministry of Defence.
British Pacific Fleet
The British Pacific Fleet (BPF) was a Royal Navy formation which saw action against Japan during the Second World War. The fleet was composed of British Commonwealth naval vessels. The BPF formally came into being on 22 November 1944 from the remaining ships of the former Eastern Fleet then being re-designated the East Indies Fleet and continuing to be based in Trincomalee. The British Pacific Fleet's main base was at Sydney, Australia, with a forward base at Manus Island. One of the largest fleets ever assembled by the Royal Navy, by VJ Day it had four battleships and six fleet aircraft carriers, fifteen smaller aircraft carriers, eleven cruisers, and numerous smaller warships, submarines, and support vessels.