A commander-in-chief (sometimes called a supreme commander or supreme commander-in-chief) is the person who exercises supreme command and control over an armed force. The role may be vested in a head of state, head of government, or another designated officer or government official.
The title used varies by country and language. Generally, English-speaking countries favor "commander-in-chief", while French-speaking countries favor "chief of armies" (French: chef des armées). Most continental European countries use the term "supreme commander", while the Soviet Union, and consequently the post-soviet states, use "supreme commander-in-chief" (Russian: Верховный главнокомандующий).
The formal role and title of a ruler commanding the armed forces derives from Imperator of the Roman Kingdom, Roman Republic and Roman Empire, who possessed imperium (command and other regal) powers.
In English use, the term was first used during the English Civil War. A nation's head of state (monarchical or republican) often holds the position of commander-in-chief, even if effective executive power is held by a separate head of government. In a parliamentary system, the executive branch is ultimately dependent upon the will of the legislature; although the legislature does not issue orders directly to the armed forces and therefore does not control the military in any operational sense. The title may also be bestowed on an officer in command of a large military or naval force, and governors-general and colonial governors are also often appointed commander-in-chief of the forces within their territory.
A commander in chief is sometimes referred to as supreme commander, which is sometimes used as a specific term. The term is also used for military officers who hold such power and authority, not always through dictatorship, and as a subordinate (usually) to a head of state (see Generalissimo). The term is also used for officers who hold authority over an individual military branch, special branch or within a theatre of operations.
According to the Constitution of Albania, the president of the Republic of Albania is the commander-in-chief of Albanian Armed Forces.
Under part II, chapter III, article 99, subsections 12, 13, 14 and 15, the Constitution of Argentina states that the president of the Argentine Nation is the "Commander-in-chief of all the armed forces of the Nation". It also states that the president is entitled to provide military posts in the granting of the jobs or grades of senior officers of the armed forces, and by itself on the battlefield; runs with its organization and distribution according to needs of the Nation and declares war and orders reprisals with the consent and approval of the Argentine National Congress.
The Ministry of Defense is the government department that assists and serves the president in the management of the armed forces (Army, Navy and Air Force).
The prime minister of Armenia holds the title of Supreme Commander in Chief of the Armenian Armed Forces (Armenian: Հայաստանի Զինված ուժերի գերագույն հրամանատար). The hereditary title and rank of Sparapet' (Armenian: սպարապետ) was used to describe the supreme commander of the military forces of ancient and medieval Armenia. Since its introduction in the 2nd century BC, it is often used today to describe famous and high-ranking military officials. Notable Armenians to have held the title include Garegin Nzhdeh, the supreme commander of the Republic of Mountainous Armenia. and Vazgen Sargsyan, the two-time defence minister of Armenia and prime minister in the 1990s.
Under chapter II of section 68 titled Command of the naval and military forces, the Constitution of Australia states that: The command in chief of the naval and military forces of the Commonwealth is vested in the Governor-General as the Queen's representative.
In practice, however, the governor-general does not play an active part in the Australian Defence Force's command structure, and the democratically accountable Australian Cabinet (chaired by the prime minister) de facto controls the ADF. The minister for defence and several subordinate ministers exercise this control through the Australian Defence Organisation. Section 8 of the Defence Act 1903 states:
The minister shall have the general control and administration of the Defence Force, and the powers vested in the chief of the defence force, the chief of Navy, the chief of Army and the chief of Air Force by virtue of section 9, and the powers vested jointly in the secretary and the chief of the defence force by virtue of section 9A, shall be exercised subject to and in accordance with any directions of the Minister.
Article 80 of the Constitution of Austria stipulates that the president of Austria is the commander-in-chief of the Austrian Armed Forces. The same article designates the minister of defence as being in command of the army.
The Supreme Commander-in-Chief of the Azerbaijani Armed Forces is the President of Azerbaijan.
According to the Constitution of Barbados, the president of Barbados is the commander-in-chief of Barbados Defence Force. Between 1966 and 2021, prior to the transition to a republican system, the monarch of Barbados, Queen Elizabeth II, was head of the Defence Force, with the governor-general of Barbados as her viceroy. The president adopted these powers.
First President Sheikh Mujibur Rahman was the supreme commander of all the armed forces of the republic. In absence of him, then vice president Syed Nazrul Islam was acting president and acting supreme commander of all the armed forces of the republic.
The commander-in-chief of Bangladesh Armed Forces is the president, although executive power and responsibility for national defence resides with the prime minister. This is discharged through the Ministry of Defence, headed by the minister of defence, which provides the policy framework and resources to the Armed Forces to discharge their responsibilities in the context of the defence of the country.
The first commander-in-chief, General M. A. G. Osmani, during Bangladesh Liberation War in 1971, who was commander of Muktibahini/Bangladesh Forces, reinstated to active duty by official BD government order, which after independence was gazetted in 1972. He retired on 7 April 1972 and relinquished all authority and duties to the president of Bangladesh.