The Admiralty was a department of the Government of the United Kingdom responsible for the command of the Royal Navy until 1964, historically under its titular head, the Lord High Admiral – one of the Great Officers of State. For much of its history, from the early 18th century until its abolition, the role of the Lord High Admiral was almost invariably put "in commission" and exercised by the Lords Commissioner of the Admiralty, who sat on the governing Board of Admiralty, rather than by a single person. The Admiralty was replaced by the Admiralty Board in 1964, as part of the reforms that created the Ministry of Defence and its Navy Department.
The Air Ministry was a department of the Government of the United Kingdom with the responsibility of managing the affairs of the Royal Air Force, that existed from 1918 to 1964. It was under the political authority of the Secretary of State for Air.
The Ministry of Defence is a ministerial department of the Government of the United Kingdom. It is responsible for implementing the defence policy set by the government and serves as the headquarters of the British Armed Forces.
A commander-in-chief or supreme commander is the person who exercises supreme command and control over an armed force or a military branch. As a technical term, it refers to military competencies that reside in a country's executive leadership, a head of state, head of government, or other designated government official.
The War Office has referred to several British government organisations in history, all relating to the army. It was a department of the British Government responsible for the administration of the British Army between 1857 and 1964, when its functions were transferred to the new Ministry of Defence (MoD). It was at that time, equivalent to the Admiralty, responsible for the Royal Navy (RN), and the Air Ministry, which oversaw the Royal Air Force (RAF). The name 'War Office' is also given to the former home of the department, located at the junction of Horse Guards Avenue and Whitehall in central London. The landmark building was sold on 1 March 2016 by HM Government for more than £350 million, on a 250 year lease for conversion into a luxury hotel and residential apartments.
The secretary of state for defence, also known as the defence secretary, is a secretary of state in the Government of the United Kingdom, with responsibility for the Ministry of Defence. As a senior minister, the incumbent is a member of the Cabinet of the United Kingdom.
The First Sea Lord and Chief of the Naval Staff (1SL/CNS) is a statutory position in the British Armed Forces usually held by an 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.
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.
The Chiefs of Staff Committee (CSC) is composed of the most senior military personnel in the British Armed Forces who advise on operational military matters and the preparation and conduct of military operations. The committee consists of the Chief of the Defence Staff who is the chairman and professional head of the forces, the Vice-Chief of the Defence Staff, who is the vice-chairman and deputy professional head of the armed forces. The committee also consists of the professional heads of each branch of the armed forces: the First Sea Lord and Chief of the Naval Staff, the Chief of the General Staff and the Chief of the Air Staff.
The Air Force Board of the Defence Council is responsible for the management of the Royal Air Force.
The Admiralty Board is the body established under the Defence Council of the United Kingdom for the administration of the Naval Service of the United Kingdom. It meets formally only once a year, and the day-to-day running of the Royal Navy is conducted by the Navy Board, which does not include any ministers.
The commander-in-chief of the Canadian Armed Forces exercises supreme command and control over Canada's military, the Canadian Armed Forces. Constitutionally, command-in-chief is vested in the Canadian monarch, presently King Charles III. Since the Letters Patent, 1947, were signed by King George VI, the governor general of Canada—presently Mary Simon—executes most of the duties of the sovereign, including in his role as commander-in-chief. Consequently, the governor general also uses the title Commander-in-Chief of the Canadian Forces. By protocol, the title used within international contexts is Commander-in-Chief of Canada.
The Board of Admiralty (1628–1964) was established in 1628 when Charles I put the office of Lord High Admiral into commission. As that position was not always occupied, the purpose was to enable management of the day-to-day operational requirements of the Royal Navy; at that point administrative control of the navy was still the responsibility of the Navy Board, established in 1546. This system remained in place until 1832, when the Board of Admiralty became the sole authority charged with both administrative and operational control of the navy when the Navy Board was abolished. The term Admiralty has become synonymous with the command and control of the Royal Navy, partly personified in the Board of Admiralty and in the Admiralty buildings in London from where operations were in large part directed. It existed until 1964 when the office of First Lord of the Admiralty was finally abolished and the functions of the Lords Commissioners were transferred to the new Admiralty Board and the tri-service Defence Council of the United Kingdom.
The Ministry of Defence (MoD) is charged with coordinating and supervising all agencies and functions of the government relating directly to national security and the Indian Armed Forces. The President of India is the ceremonial commander-in-chief of the armed forces of the country. The Ministry of Defence provides policy framework and resources to the armed forces to discharge their responsibility in the context of the country's defence. The Indian Armed Forces and Indian Coast Guard under the Ministry of Defence are primarily responsible for ensuring the territorial integrity of India.
The Army Board is the top single-service management committee of the British Army, and has always been staffed by senior politicians and soldiers. Until 1964 it was known as the Army Council.
The Permanent Under-Secretary of State for Defence, also called the Permanent Secretary to the Ministry of Defence, is the permanent secretary at the Ministry of Defence. The office holder is the government's principal civilian adviser on Defence matters. The office holder is a member of the Defence Council and the Defence Board. They are the MOD Principal Accounting Officer, and are called to give evidence to the Defence Select Committee.
Head of the Armed Forces is the position of the sovereign of the United Kingdom as commander-in-chief of the British Armed Forces. However, supreme military authority has been delegated by the monarch to the Defence Council of the United Kingdom, a body officially charged with the direction and administration of the Armed Forces.
The Ministry of Defence (MINISDEF) is the department of the Government of Spain responsible for planning, developing and carrying out the general guidelines of the Government about the defence policy and the managing of the military administration. It is the administrative and executive body of the Spanish Armed Forces.
The Navy Department was a former ministerial service department of the British Ministry of Defence responsible for the control and direction of His Majesty's Naval Service. It was established on 1 April 1964 when the Admiralty was absorbed into a unified Ministry of Defence, where it became the Navy Department. Political oversight of the department originally lay with the Minister of Defence for the Royal Navy (1964–1967) it then passed to the Parliamentary Under-Secretary of State for Defence for the Royal Navy (1967–1981), then later to the Parliamentary Under-Secretary of State for the Armed Forces (1981–1990), and finally the Parliamentary Under-Secretary of State for Defence (1991–1997).
The Chief of Defence Staff (CDS) is the principal military authority and senior-most appointment of the Indian Armed Forces. Deemed the overall professional head of India’s three armed services, namely, the Indian Army, the Indian Navy and the Indian Air Force, the CDS is the highest-ranking military officer in service, responsible for overseeing inter-service jointness across all disciplines related to military functioning. Primarily, the office operates on a status of primus inter pares i.e., first among equals with the chiefs of the three services, and functions as the Permanent-Chairman of the Chiefs of Staff Committee (COSC) – the inter-service syndicate responsible for ensuring the establishment and preservation of military integration.
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