Deputy Chief of the Naval Staff

The Deputy Chief of the Naval Staff (D.C.N.S.) is a senior appointment in the Royal Navy currently held by the Second Sea Lord, usually a three-star rank and had a NATO ranking code of OF-8 but has previously been held by an acting two-star ranked officer and a four-star ranked officer.

History
The position was originally established in 1917 on the Board of Admiralty. It essentially replaced the position of Chief of the Admiralty War Staff.

The first incumbent was Vice-Admiral (Acting) Henry Oliver, the Chief of the Admiralty War Staff, who was appointed Deputy Chief of Naval Staff on 31 May 1917. The duties of the Deputy Chief of the Naval Staff, were shared with the First Sea Lord and Chief of the Naval Staff and with the Assistant Chief of the Naval Staff.

In September 1917 the new post of Deputy First Sea Lord was created to meet the demand of wartime operational requirements: the Deputy Chief of the Naval Staff then reported to the Deputy First Sea Lord until 1919 when that post was abolished. The Deputy Chief Naval Staff then resumed his previous role and reported to the First Sea Lord until 1941 when this post was renamed Vice Chief of the Naval Staff due to restructuring within the British Armed Forces; this continued until 1946.

After the Second World War the title was changed back and continued until 1968 when it was abolished by the Admiralty Department.

In 2013 the office was brought back once more and the current Deputy Chief of the Naval Staff became both a member of the Admiralty Board and a member of the Navy Board of the Ministry of Defence.

Duties
As of:1917.


 * 1) Relieve the (C.N.S.) of all routine matters dealt with by sections under his immediate direction.
 * 2) Fleet Movements.
 * 3) All operations in the North Sea, the White Sea, the Baltic, and the Dover Area, except British coastal measures for the protection of trade.
 * 4) Offensive measures in the Mediterranean and abroad generally.
 * 5) The protection of trade in the North Sea, except the coastal trade on the East Coast of Great Britain.  North Sea trade includes the Dutch trade, trade between Scandinavian countries and Great Britain, and Baltic trade, but not convoy from Lerwick, Southward.
 * 6) All questions relating to foreign stations, except protection of trade against submarine and mine attack.
 * 7) Policy of blockade and all questions relating thereto and to contraband of war.
 * 8) Organisation, movements and protection of troop transports and other vessels against attack by surface vessels; Atlantic convoys other than troop convoys being under A.C.N.S.  [See Assistant Chief of the Naval Staff.

NOTE: - Programmes of arrivals and departures of such vessels must be made out in co-operation with A.C.N.S., who is responsible for providing the anti-submarine escort in dangerous areas such as mining. This remained in place until 1939

Post 1939
 * 1) Operations of War: All large Questions of Naval Policy and Maritime Warfare.
 * 2) Fighting and Sea-going Efficiency of the Fleet and its Organisation.
 * 3) Distribution and Movements of all Ships in Commission and in Reserve.
 * 4) Superintendence of the Naval Staff and the Hydrographic Department.
 * 5) Administering Naval communications.
 * 6) Superintendence of the Assistant Chief of the Naval Staff
 * 7) Superintendence of the Director of the Naval Intelligence Division until 1941 title is renamed Vice Chief of the Naval Staff until 1946 post changes back to original name and continues with superintendence of junior naval staff until 1968.

Post 2014


 * 1) (D. C. N. S. ) has full command of all deployable Fleet units including the Royal Marines.
 * 2) (D. C. N. S. ) is responsible for providing ships, submarines, aircraft and Royal Marine units ready in all respects for any operations that the UK Government requires.
 * 3) (D. C. N. S. ) is responsible for the delivery of the Naval Service’s current and future personnel, equipment and infrastructure.

Deputy Chiefs of the Naval Staff
Commanders included:
 * Vice-Admiral Sir Henry Oliver, — (July 1917–January 1918)
 * Rear-Admiral Sir Sydney Fremantle, — Acting — (January 1918–May 1919)
 * Rear-Admiral Sir James Fergusson, — (May–August 1919)
 * Vice-Admiral Sir Osmond Brock, — (August 1919–November 1921)
 * Vice-Admiral Sir Roger Keyes, — (November 1921–May 1925)
 * Vice-Admiral Sir Frederick Field, — (May 1925–May 1928)
 * Vice-Admiral Sir William Wordsworth Fisher, — (May 1928–June 1930)
 * Admiral Sir Frederic Charles Dreyer, — (June 1930–January 1933)
 * Vice-Admiral Sir Charles J. C. Little, — (January 1933–October 1935)
 * Vice-Admiral Sir William Milbourne James, — (October 1935–October 1938)
 * Vice-Admiral Sir Andrew B. Cunningham, — (October 1938–May 1939)
 * Vice-Admiral Sir Tom S. V. Phillips, — (June 1939–October 1941)
 * Note: Post is re-named 1941 to 1946 its responsibilities are taken over by the Vice Chief of the Naval Staff


 * Rear-Admiral Sir Robert Don Oliver — Acting — (April 1946–April 1947)
 * Vice-Admiral Sir Edward Evans-Lombe, — (December 1950–January 1953)
 * Rear-Admiral Sir Geoffrey Barnard, — Acting — (January 1953–April 1954)
 * Vice-Admiral Sir Eric Clifford, — (April 1954–September 1957)
 * Note: From 1957 to 1965 the post was held jointly by the Fifth Sea Lord


 * Vice Admiral Sir Manley Power, — (October 1957–February 1959)
 * Admiral Sir Laurence Durlacher, — (February 1959–January 1962)
 * Vice Admiral Sir Peter Gretton, — (January 1962–January 1963)
 * Vice Admiral Sir Frank Hopkins, — (January 1963–March 1966)
 * Vice-Admiral Sir Richard B. Janvrin, — (March 1966–October 1968)
 * Note: Post ceased from 1969 to 2012, Post is re-established from 2013 to 2015 it was held by the Fleet Commander. From 2016 is held jointly by the Second Sea Lord


 * Vice-Admiral Sir Philip Jones, — (2013–2016)
 * Vice-Admiral Jonathan Woodcock, — (2016–current)

Attribution
Primary source for this article is by Harley, Simon and Lovell, Tony, (2016) Deputy Chief of Naval Staff, The Dreadnought Project, http://dreadnoughtproject.org.