Admiral of the Fleet John Rushworth Jellicoe, 1st Earl Jellicoe, was a Royal Navy officer. He fought in the Anglo-Egyptian War and the Boxer Rebellion and commanded the Grand Fleet at the Battle of Jutland in May 1916 during the First World War. His handling of the fleet at that battle was controversial. Jellicoe made no serious mistakes and the German High Seas Fleet retreated to port, at a time when defeat would have been catastrophic for Britain, but the public was disappointed that the Royal Navy had not won a more dramatic victory given that they outnumbered the enemy. Jellicoe later served as First Sea Lord, overseeing the expansion of the Naval Staff at the Admiralty and the introduction of convoys, but was relieved at the end of 1917. He also served as the governor-general of New Zealand in the early 1920s.
The Naval Intelligence Division (NID) was created as a component part of the Admiralty War Staff in 1912. It was the intelligence arm of the British Admiralty before the establishment of a unified Defence Intelligence Staff in 1964. It dealt with matters concerning British naval plans, with the collection of naval intelligence. It was also known as "Room 39", after its room number at the Admiralty.
The post of Controller of the Navy was originally created in 1859 when the Surveyor of the Navy's title changed to Controller of the Navy. In 1869 the controller's office was abolished and its duties were assumed by that of the Third Naval Lord whose title then changed to Third Naval Lord and Controller of the Navy. In 1904 the title was changed again to Third Sea Lord and Controller of the Navy. In 1965 the office of the Third Sea Lord was abolished. The post-holder is responsible for procurement and matériel in the British Royal Navy.
The Assistant Chief of the Naval Staff (A.C.N.S.) is a senior appointment in the Royal Navy usually a two-star rank and has a NATO ranking code of OF-7.
The Operations Division was a former directorate of the Admiralty Naval Staff responsible for the creation and implementation of long-term policy in regards to the composition of all Royal Navy fleets, squadrons and commands and including operational planning and monitoring from 1912 to 1961.
The Anti-Submarine Division its original name, was the former anti-submarine warfare, planning and prevention directorate of the Admiralty Department from 1912 to 1963.
The Plans Division was the former war preparation and wartime strategic planning arm of the Admiralty Department from 1917 to 1964, The division originally became the main policy advisory and formulating body to the Chief of the Naval Staff. It later came under the supervision of the Assistant-Chief of the Naval staff (Policy).
The Signal Division was a Directorate of the Admiralty Naval Staff responsible for policy, control and management of all naval communications from 1914 to 1964.
The Admiral-superintendent, Portsmouth was the Royal Navy officer in command of the Naval Dockyard. Portsmouth from 1832 to 1971; prior to this date a resident Commissioner of the Navy Board had had oversight of the yard, since 1649. In May 1971 command responsibility for naval staff in the dockyard was merged into the wider local command structure, initially under the dual designation of Flag Officer, Portsmouth and Admiral Superintendent, Portsmouth but in July 1971 was again renamed Flag Officer Spithead and Port Admiral Portsmouth after a couple of months. These joint titles was used until 1975, and despite the name change the command still covered the same geographic area and operational responsibilities until 1996 when its ceased to exist as a separate command appointment and its responsibilities were assumed by the staff of Flag Officer First Flotilla.
The Department of the Director of Naval Equipment also known as the Directorate of Naval Equipment was the former British Admiralty department responsible for managing the progress of all naval construction at royal naval dockyards, and annually planning programmes of works for additions, alterations, repairs and modernisation established in 1912 until 1960 when it was replaced by the Naval Equipment Division of the Ship Department.
The Trade Division was a Directorate of the British Admiralty, Naval Staff responsible for all matters in relation to U.K. Trade Defence from 1914 until 1928 and then again from 1939 to 1961.
The Gunnery Division was a Directorate of the Admiralty Naval Staff of the Royal Navy responsible for the tactical use of naval weapons and the training of naval personnel in relation to operational requirements. It was established in 1920 when the Gunnery and Torpedo Division was separated into an independent Gunnery Division and Torpedo Division. It existed until 1964 when the Department of Admiralty was abolished and replaced by a new Ministry of Defence.
The Training and Staff Duties Division and later known as the Tactical and Staff Duties Division was a directorate of the Admiralty Naval Staff of the Royal Navy responsible for the tactical use of naval weapons and the training of naval personnel in relation to operational requirements from 1917 to 1958.
The Admiral Commanding, Reserves, was a senior Royal Navy post that existed from 1875 to 1976.
The 2nd Cruiser Squadron was a formation of cruisers of the British Royal Navy from 1904 to 1919 and from 1921 to 1941 and again from 1946 to 1952.
The Directorate of Navigation and Tactical Control (Naval) was a directorate of the Navy Department, Naval Staff first established in 1912, as the Navigation Department of Hydrographic Department of the Admiralty. In 1945, it was renamed the Navigation Division and assigned to the Admiralty Naval Staff. In 1946, it was redesignated Navigation and Direction Division until 1966, and now part of the Navy Department Naval Staff it was renamed the Directorate of Navigation and Tactical Control (Naval). The staff directorate was administered by the Director Navigation Tactical Control (Naval) who reported to the Assistant Chief of the Naval Staff (Warfare) it existed until 1968.
The Naval Assistant to the First Sea Lord also known as the Executive Assistant to the First Sea Lord was a senior appointment of the Royal Navy established in 1905 until 2014. The post holder was responsible for assisting the First Sea Lord in the discharging of his duties and responsible for administrative and secretarial work within the private office of the First Sea Lord.
The Directorate Naval Tactical and Weapons Policy originally called the Tactical Section was a directorate of the British Admiralty, and later of the Naval Staff, Ministry of Defence,. Dating from 1920 it operated until 1939 before being abolished. It was revived in 1958 and existed until 1968. The naval staff directorate was administered by the Director, Directorate Naval Tactical and Weapons Policy.
The Torpedo Division originally called the Gunnery and Torpedo Division was a naval staff organisation of the British Admiralty Naval Staff established in 1920 when the functions of the Gunnery and Torpedo Division was divided up into separate functions. It existed until 1928 when it was absorbed into the Tactical Division.
The Department of the Director of Underwater Weapons Materials originally known as the Torpedo Department was a former department of the British Department of Admiralty from 1917 to 1958 when it became the Underwater Weapons Division of the Weapons Department.
