Admiral of the Fleet is a five-star naval officer rank and the highest rank of the Royal Navy, formally established in 1688. The five-star NATO rank code is OF-10, equivalent to a field marshal in the British Army or a Marshal of the Royal Air Force. Apart from honorary appointments, no new admirals of the fleet have been named since 1995, and no honorary appointments have been made since 2014.
The First Sea Lord and Chief of the Naval Staff (1SL/CNS) is a statutory position in the British Armed Forces usually held by a four star admiral. As the highest-ranking officer to serve in the Royal Navy, the chief is the principal military advisor on matters pertaining to the navy and a deputy to the Secretary of State for Defence. In a separate capacity, the CNS is a member of the Chiefs of Staff Committee and, thereby, a military advisor to the National Security Council, the prime minister and the monarch. The First Sea Lord is typically the highest-ranking officer on active duty of the Royal Navy unless the Chief of the Defence Staff is a naval officer. Admiral Ben Key was appointed First Sea Lord in November 2021.
Marshal of the Royal Air Force (MRAF) is the highest rank in the Royal Air Force (RAF). In peacetime it was granted to RAF officers in the appointment of Chief of the Defence Staff (CDS), and to retired Chiefs of the Air Staff (CAS), who were promoted to it on their last day of service. While surviving Marshals of the RAF retain the rank for life, the highest rank to which officers on active service are promoted is now air chief marshal. Although general promotions to Marshal of the Royal Air Force have been discontinued since the British defence cuts of the 1990s, further promotions to the rank may still be made in wartime, for members of the Royal Family and certain very senior RAF air officers in peacetime at the discretion of the monarch; all such promotions in peacetime are only honorary, however. In 2012, the then Prince of Wales was promoted to the rank in recognition of his support for his mother, Queen Elizabeth II, in her capacity as head of the armed forces (commander-in-chief), while in 2014 Lord Stirrup, who had served as Chief of the Air Staff and Chief of the Defence Staff for over seven years, was also promoted.
Air vice-marshal is a air officer rank used by some air forces, with origins from the Royal Air Force. The rank is also used by the air forces of many countries which have historical British influence and it is sometimes used as the English translation of an equivalent rank in countries which have a non-English air force-specific rank structure.
The Chief of the General Staff (CGS) has been the title of the professional head of the British Army since 1964. The CGS is a member of both the Chiefs of Staff Committee and the Army Board; he is also the Chair of the Executive Committee of the Army Board. Prior to 1964, the title was Chief of the Imperial General Staff (CIGS). Since 1959, the post has been immediately subordinate to the Chief of the Defence Staff, the post held by the professional head of the British Armed Forces.
Marshal of the air force or marshal of the air is a five-star rank and an English-language term for the most senior rank in some air forces. It is usually the direct equivalent of a general of the air force in other air forces, a field marshal or general of the army in many armies, or a naval admiral of the fleet.
The Chief of the Air Staff (CAS) is the professional head of the Royal Air Force and a member of both the Chiefs of Staff Committee and the Air Force Board. The post was created in 1918 with Major General Sir Hugh Trenchard as the first incumbent. The current and 30th Chief of the Air Staff is Air Chief Marshal Sir Richard Knighton, who succeeded Sir Michael Wigston on 2 June 2023.
Field Marshal Michael John Dawson Walker, Baron Walker of Aldringham, is a retired British Army officer. Commissioned in 1966, he served in Cyprus, Northern Ireland, and in a variety of staff posts in the United Kingdom until 1984. After being given command of a battalion, he was mentioned in despatches for his service during a second tour of duty in Northern Ireland, this time in Derry, and subsequently served a tour on Gibraltar. He was promoted to brigadier, unusually having never held the rank of colonel, and took command of 20th Armoured Brigade in Germany before becoming I Corps chief of staff.
The Deputy Chief of the Defence Staff is a senior British military officer who reports to the Chief of the Defence Staff and Vice-Chief of the Defence Staff.
The Defence Services Secretary is a senior member of the Royal Household of the Sovereign of the United Kingdom.
Marshal of the Royal Air Force Graham Eric Stirrup, Baron Stirrup,, informally known as Jock Stirrup, is a former senior Royal Air Force commander who was the Chief of the Defence Staff from 2006 until his retirement in late 2010. He is now a Crossbench member of the House of Lords. In April 2013, he was appointed a Knight Companion of the Order of the Garter by Queen Elizabeth II.
Marshal of the Royal Air Force David Brownrigg Craig, Baron Craig of Radley, is a retired Royal Air Force officer and member of the House of Lords. He was a fast jet pilot in the 1950s, a squadron commander in the 1960s and a station commander in the 1970s. He served as Chief of the Air Staff during the late 1980s, when the Boeing Airborne early warning and control system was ordered and the European Fighter programme was being developed. He then served as Chief of the Defence Staff during the Gulf War. He was granted a life peerage as Baron Craig of Radley after his retirement from active service in 1991, sitting as a crossbencher. As of 2022, he is the last living officer in the British Armed Forces to have held a five-star rank whilst on active service.
Air Chief Marshal Stuart William Peach, Baron Peach, is a British retired senior Royal Air Force officer. After training as a navigator, Peach commanded IX (Bomber) Squadron and then became Deputy Station Commander RAF Bruggen. He was deployed as NATO Air Commander (Forward) in Kosovo in 2000. He went on to be Chief of Defence Intelligence in 2006, Chief of Joint Operations in 2009 and the first Commander of Joint Forces Command in December 2011 before being appointed Vice-Chief of the Defence Staff in May 2013. Peach succeeded General Sir Nick Houghton as Chief of the Defence Staff on 14 July 2016. He succeeded General Petr Pavel as Chairman of the NATO Military Committee on 29 June 2018, serving as such until his retirement from NATO in June 2021.
Air Marshal Sir Barry Mark North, is a retired senior Royal Air Force officer, who served as Deputy Commander (Personnel) at RAF Air Command. A helicopter pilot, North has held command appointments at all levels, notably No. 78 Squadron in the Falkland Islands, the Special Forces Flight as a squadron leader and the newly established No. 83 Expeditionary Air Group in the Middle East as an air commodore.
Air Chief Marshal Sir Michael James Douglas Stear, was a senior commander of the Royal Air Force (RAF). He served as Deputy Commander in Chief, Allied Forces Central Europe from 1992 to 1996.
Controller Aircraft (CA), originally Controller of Aircraft, is a senior British Ministry of Defence appointment who is responsible for delivering an airworthy aircraft to the Services, whereupon the Service issues a Release to Service (RTS), releasing the aircraft into service. The difference between CA Release and RTS is normally one of Build Standard. Although usually held by a Royal Air Force officer, several civil servants have held the post in the 20th century. The incumbent is a member of the Air Force Board.
Field marshal (FM) has been the highest rank in the British Army since 1736. A five-star rank with NATO code OF-10, it is equivalent to an Admiral of the Fleet in the Royal Navy or a Marshal of the Royal Air Force in the Royal Air Force (RAF). A Field Marshal's insignia consists of two crossed batons surrounded by yellow leaves below the Tudor Crown. Like Marshals of the Royal Air Force and Admirals of the Fleet, Field Marshals traditionally remain officers for life, though on half-pay when not in an appointment or retired. The rank has been used sporadically throughout its history, and was vacant during parts of the 18th and 19th centuries. After the Second World War, it became standard practice to appoint the Chief of the Imperial General Staff to the rank on his last day in the post. Army officers occupying the post of Chief of the Defence Staff, the professional head of all the British Armed Forces, were usually promoted to the rank upon their appointment.
General Sir Patrick Nicholas Yardley Monrad Sanders,, is a senior British Army officer serving as Chief of the General Staff since June 2022.
Admiral Sir Antony David Radakin, is a senior Royal Navy officer. He has served as Chief of the Defence Staff, the professional head of the British Armed Forces, since November 2021. Radakin was previously the First Sea Lord, the professional head of the Naval Service from June 2019 to November 2021. He was Chief of Staff, Joint Forces Command, from 2016 to 2018, and the Second Sea Lord and Deputy Chief of the Naval Staff from 2018 to 2019. He was appointed Lord High Constable of England in 2023, and in that role took part in the Coronation of Charles III and Camilla.
Air Chief Marshal Sir Richard John Knighton, is a senior Royal Air Force (RAF) officer and professional engineer, currently serving as Chief of the Air Staff, the professional head of the RAF, since 2 June 2023. He previously served as Assistant Chief of the Air Staff from January 2015 to January 2017, Deputy Chief of Defence Staff at the Ministry of Defence, and as Deputy Commander Capability at RAF Air Command. Knighton is notable for being the first Chief of the Air Staff who is not a military pilot or indeed aircrew-qualified.
