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 chief of naval operations (CNO) is the highest-ranking officer of the United States Navy. The position is a statutory office held by an admiral who is a military adviser and deputy to the secretary of the Navy. The CNO is also a member of the Joint Chiefs of Staff and in this capacity, a military adviser to the National Security Council, the Homeland Security Council, the secretary of defense, and the president.
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.
An executive officer is a person who is principally responsible for leading all or part of an organization, although the exact nature of the role varies depending on the organization. In many militaries and police forces, an executive officer, or "XO", is the second-in-command, reporting to the commanding officer. The XO is typically responsible for the management of day-to-day activities, freeing the commander to concentrate on strategy and planning the unit's next move.
The title chief of staff identifies the leader of a complex organization such as the armed forces, institution, or body of persons and it also may identify a principal staff officer (PSO), who is the coordinator of the supporting staff or a primary aide-de-camp to an important individual, such as a president, or a senior military officer, or leader of a large organization.
The vice chief of naval operations (VCNO) is the second highest-ranking commissioned United States Navy officer in the Department of the Navy and functions as the principal deputy of the chief of naval operations. By statute, the vice chief is appointed as a four-star admiral.
The Chief of the Air Staff (CAS) is a statutory office held by the professional head of the Indian Air Force (IAF), the aerial branch of the Indian Armed Forces. Customarily held by a four-star air chief marshal, the CAS is the senior-most operational officer of the IAF, mandated with the responsibilities of supervising the force's overall functioning during states of peace and wartime, committing to the establishment-cum-continuity of air deterrence and executing India's security objectives vis-à-vis the preservation of the country's air sovereignty.
The Bureau of Medicine and Surgery (BUMED) is an agency of the United States Department of the Navy that manages health care activities for the United States Navy and the United States Marine Corps. BUMED operates hospitals and other healthcare facilities as well as laboratories for biomedical research, and trains and manages the Navy's many staff corps related to medicine. Its headquarters is located at the Defense Health Headquarters in Fairfax County, Virginia. BUMED has 41,930 medical personnel and more than a million eligible beneficiaries.
The Allied leaders of World War I were the political and military figures that fought for or supported the Allied Powers during World War I.
The Navy Command is the current headquarters body of the Royal Navy, and as of 2012 its major organisational grouping. It is a hybrid, neither a command, nor simply an installation. Royal Navy official writings describe Navy Command Headquarters both as a physical site, on Whale Island, Hampshire, a collective formed of the most senior RN officers, and as a budgetary grouping.
Admiral (retired) Jayantha Perera RWP, VSV, USP, ndu, psc was the 19th Commander of the Sri Lankan Navy.
The Vice Chief of the Naval Staff (VCNS) is a statutory position in the Indian Armed Forces, that is usually held by a three star vice admiral. The Vice Chief is the deputy of the Chief of the Naval Staff and is usually the second highest ranking officer of the Indian Navy. The current VCNS is Vice Admiral Krishna Swaminathan who took over from Vice Admiral Dinesh K Tripathi on 1 May 2024.
The Vice Chief of the Naval Staff (V.C.N.S.) was a senior appointment in the Royal Navy usually a three-star rank and had a NATO ranking code of OF-8 that existed from 1941 to 1985 and was a member of the Admiralty Naval Staff.
The Deputy Chief of the Naval Staff (DCNS) is a senior appointment in the Royal Navy currently held by the Second Sea Lord. The incumbent is usually a three-star rank and had a NATO ranking code of OF-8, but the position has previously been held by an acting two-star ranked officer and a four-star ranked officer.
The Admiralty Naval Staff 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. It was replaced by the Ministry of Defence as part of the Ministry of Defence Navy Department.
The Deputy Chief of the Naval Staff (DCNS) are several very important administrative senior military appointments and principle staff commands, headed and commanded by the Principal Staff Officers (PSOs) at the NHQ. They are also the commander of their respective branch in the Pakistan Navy and these commands are held by senior flag officers of Rear Admiral and Vice Admiral rank in the Navy and are directly reporting and functioning under the Chief of the Naval Staff. DCNS appointments play a very important administrative role for the proper functioning of an entire navy. The DCNS appointments ranges from rear admiral to vice admiral rank depending on assignment nature.
The Deputy Chief of the Air Staff (DCAS) is a senior appointment in the Indian Air Force. The DCAS is a PSO at Air Force Headquarters in New Delhi. The office is held by a Three Star Officer in the rank of Air Marshal. The current DCAS is Air Marshal Tejinder Singh who took over from Air Marshal Ashutosh Dixit on 1 September 2024.
Ken Terajima was a Japanese Vice Admiral and politician. He was also known for serving as the Minister of Communications from 18 October 1941 to 8 October 1943, and Minister of Railways from 18 October 1941 to 2 December 1941, in the Tōjō Cabinet.
