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.
Trade and Operations Division (Royal Navy)
The division was established in July 1961 by amalgamating of the Operations Division and the Trade Division into a single organisation. The division existed until April 1964 when the Admiralty was merged with the new Ministry of Defence it survived the merger now as part of the Navy Department, Naval Staff and retained its original name until November 1967 when it was renamed the Directorate of Naval Operations and Trade. .
Included: