Commodore is a senior naval rank used in many navies which is equivalent to brigadier and air commodore. It is superior to a navy captain, but below a rear admiral. It is either regarded as the most junior of the flag officers rank or may not hold the jurisdiction of a flag officer at all depending on the officer's appointment. Non-English-speaking nations commonly use the rank of flotilla admiral, counter admiral, or senior captain as an equivalent, although counter admiral may also correspond to rear admiral lower half abbreviated as RDML.
Vice admiral is a senior naval flag officer rank, usually equivalent to lieutenant general and air marshal. A vice admiral is typically senior to a rear admiral and junior to an admiral.
Rear admiral is a senior naval flag officer rank, equivalent to a major general and air vice marshal and above that of a commodore and captain, but below that of a vice admiral.
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 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 Defence Staff is a naval officer. Admiral Ben Key was appointed First Sea Lord in November 2021.
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.
Air Chief Marshal is a high-ranking air officer originating from the Royal Air Force. The rank is used by air forces of many countries that have historical British influence. An air chief marshal is equivalent to an Admiral in a navy or a full general in an army or other nations' air forces.
The Chief of the Defence Force (CDF) is the highest-ranking and most senior military officer in the Australian Defence Force (ADF) and is the principal military advisor to the National Security Committee and the Minister for Defence. The current Chief of the Defence Force is General Angus Campbell, who took office on 6 July 2018.
The Chief of the Naval Staff, (CNS), is a statutory position in the Indian Armed Forces held by a four star admiral. As the highest-ranking officer assigned to serve in the Indian Navy, the chief is the principal military advisor and a deputy to the Union Minister of 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 (India), the prime minister and the president. The CSA is typically the highest-ranking officer on active duty of the Indian Navy unless the chairman is a naval officer.
The Nigerian Navy (NN) is a branch of the Nigerian Armed Forces. It is among the largest navies on the African continent, consisting of 25,000 personnel as at 2021. Its motto is "Onward Together".
The Chief of the Defence Staff (CDS) is the most senior appointment in the Sri Lankan Armed Forces, and the highest-ranking military officer in service, outranking the heads of each service branch. The CDS does not, however, have operational command authority over service branches, but rather oversees inter-service co-operation and develops and implements the joint operations doctrine of the Sri Lankan armed forces. Coordination of inter-service joint operations are handled by the Office of the Chief of the Defence Staff formally known as the Joint Operations Headquarters.
The Chief of Defence Staff (CDS) is the professional head of the Nigerian Armed Forces and the most senior uniformed military adviser to the minister of defence and the president of Nigeria. The chief of the defence staff is based at the Defence Headquarters, Abuja and works alongside the Permanent Secretary of Defence. The Chief of Defence is the highest ranking officer to currently serve in the armed forces.
The Chief of Naval Staff, is a military appointment and a Statutory office held by a four-star admiral in the Pakistan Navy, who is nominated and appointed by the Prime Minister of Pakistan and confirmed by the President of Pakistan.
The National Defence College, located in New Delhi, is the defence service training institute and highest seat of strategic learning for officers of the Defence Service and the Civil Services. This is a very prestigious course attended only by a few hand-picked defence officers of One-Star rank and civil servants of the rank of Joint secretary to the Government of India. Each year, approximately 25 officers from friendly foreign countries like the US, UK, Canada, France, Germany, Australia, Vietnam, Sri Lanka, Nepal, UAE and others attend the course.
Admiral Zafar Mahmood AbbasiNI(M) HI(M) SI(M) BJSN is a retired four-star admiral of the Pakistan Navy who served as the 16th Chief of the Naval Staff (CNS) of Pakistan Navy from 7 October 2017 until 7 October 2020.
Vice Admiral Mathew Quashie was a Ghanaian naval officer and was the twenty-ninth Chief of Defence Staff of the Ghana Armed Forces. He also served as the Chief of Naval Staff of the Ghana Navy from 3 April 2009 to 28 March 2013.
Dele Joseph EzeobaGSS fwc MSc MRIN FCIS is a retired vice admiral in the Nigerian Navy who was the 20th Chief of the Naval Staff. Prior to that appointment, he served as Deputy Commandant at the Armed Forces Command and Staff College (AFCSC), Jaji, Nigeria.
The Chief of Army Staff (COAS) has been the title of the professional head of the Nigerian Army since 1966. Prior to 1966, the title was General Officer Commanding, Nigerian Army (GOCNA). Since 1980, the post has been immediately subordinate to the Chief of Defence Staff, the post held by the professional head of the Nigerian Armed Forces. The position is often occupied by the most senior commissioned officer appointed by the President of Nigeria.
Ibok-Ete Ekwe Ibaspsc+ GSS AM ndc MSc is a retired Nigerian Navy vice admiral, who was the 22nd Chief of the Naval Staff (CNS) of the Nigerian Navy from 2015 to 2021.
Admiral Radhakrishnan Hari Kumar is a serving flag officer in the Indian Navy. He is the 25th and current Chief of the Naval Staff (CNS). Previously, he served as the Flag Officer Commanding-in-Chief, Western Naval Command. In his prior appointments, he served as the Chief of Integrated Defence Staff, Chief of Personnel, Controller Personnel Services, the Flag Officer Commanding Western Fleet, Flag Officer Sea Training and the Chief of the Staff of the Western Naval Command. He was the Commandant of the Naval War College, Goa and served as a naval advisor to the government of Seychelles. He is an alumnus of National Defence Academy, the Naval War College, the Army War College, Mhow and the Royal College of Defence Studies.
Vice Admiral Seth Amoama is the current Chief of Defence Staff (CDS) of the Ghana Armed Forces. He was appointed by President Akufo Addo in January 2021. He replaced Lieutenant General Obed Akwa, who retired at the start of February 2021. Prior to that he was the Chief of Naval Staff of the Ghana Navy appointed since 2019.
Nigerian Navy 
