The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. As of 1 July 2023, the British Army comprises 76,225 regular full-time personnel, 4,139 Gurkhas, 26,755 volunteer reserve personnel and 4,532 "other personnel", for a total of 111,651.
A militia is generally an army or some other fighting organization of non-professional and/or part-time soldiers; citizens of a country, or subjects of a state, who may perform military service during a time of need, as opposed to a professional force of regular, full-time military personnel; or, historically, to members of a warrior-nobility class. When acting independently militias are generally unable to hold ground against regular forces; militias commonly support regular troops by skirmishing, holding fortifications, or conducting irregular warfare, instead of undertaking offensive campaigns by themselves. Local civilian laws often limit militias to serve only in their home region, and to serve only for a limited time; this further reduces their use in long military campaigns. Militias may also, however, serve as a pool of available manpower for regular forces to draw from, particularly in emergencies.
The British Armed Forces, formally known as His Majesty's Armed Forces, are the military forces responsible for the defence of the United Kingdom, its Overseas Territories and the Crown Dependencies. They also promote the UK's wider interests, support international peacekeeping efforts and provide humanitarian aid.
A lord-lieutenant is the British monarch's personal representative in each lieutenancy area of the United Kingdom. Historically, each lieutenant was responsible for organising the county's militia. In 1871, the lieutenant's responsibility over the local militia was removed. However, it was not until 1921 that they formally lost the right to call upon able-bodied men to fight when needed.
The Army Reserve is the active-duty volunteer reserve force of the British Army. It is separate from the Regular Reserve whose members are ex-Regular personnel who retain a statutory liability for service. The Army Reserve was known as the Territorial Force from 1908 to 1921, the Territorial Army (TA) from 1921 to 1967, the Territorial and Army Volunteer Reserve (TAVR) from 1967 to 1979, and again the Territorial Army (TA) from 1979 to 2014.
The Territorial Force was a part-time volunteer component of the British Army, created in 1908 to augment British land forces without resorting to conscription. The new organisation consolidated the 19th-century Volunteer Force and yeomanry into a unified auxiliary, commanded by the War Office and administered by local county territorial associations. The Territorial Force was designed to reinforce the regular army in expeditionary operations abroad, but because of political opposition it was assigned to home defence. Members were liable for service anywhere in the UK and could not be compelled to serve overseas. In the first two months of the First World War, territorials volunteered for foreign service in significant numbers, allowing territorial units to be deployed abroad. They saw their first action on the Western Front during the initial German offensive of 1914, and the force filled the gap between the near destruction of the regular army that year and the arrival of the New Army in 1915. Territorial units were deployed to Gallipoli in 1915 and, following the failure of that campaign, provided the bulk of the British contribution to allied forces in the Sinai and Palestine Campaign. By the war's end, the Territorial Force had fielded twenty-three infantry divisions and two mounted divisions on foreign soil. It was demobilised after the war and reconstituted in 1921 as the Territorial Army.
The Commander-in-Chief of the Forces, later Commander-in-Chief, British Army, or just the Commander-in-Chief (C-in-C), was (intermittently) the professional head of the English Army from 1660 to 1707 and of the British Army from 1707 until 1904. In 1904 the office was replaced with the creation of the Army Council and the appointment of Chief of the General Staff.
Auxiliaries are support personnel that assist the military or police but are organised differently from regular forces. Auxiliary may be military volunteers undertaking support functions or performing certain duties such as garrison troops, usually on a part-time basis. Unlike a military reserve force, an auxiliary force does not necessarily have the same degree of training or ranking structure as regular soldiers, and it may or may not be integrated into a fighting force. Some auxiliaries, however, are militias composed of former active duty military personnel and actually have better training and combat experience than their regular counterparts.
The Territorial Decoration (TD) was a military medal of the United Kingdom awarded for long service in the Territorial Force and its successor, the Territorial Army. This award superseded the Volunteer Officer's Decoration when the Territorial Force was formed on 1 April 1908, following the enactment of the Territorial and Reserve Forces Act 1907, which was a large reorganisation of the old Volunteer Army and the remaining units of militia and Yeomanry. However, the Militia were transferred to the Special Reserve rather than becoming part of the Territorial Force. A recipient of this award is entitled to use the letters "TD" after their name (post-nominal).
The British Army is listed according to an order of precedence for the purposes of parading. This is the order in which the various corps of the army parade, from right to left, with the unit at the extreme right being highest. Under ordinary circumstances, the Household Cavalry parades at the extreme right of the line. Militia and Army Reserve units take precedence after Regular units with the exception of The Honourable Artillery Company and The Royal Monmouthshire Royal Engineers.
The Cardwell Reforms were a series of reforms of the British Army undertaken by Secretary of State for War Edward Cardwell between 1868 and 1874 with the support of Liberal prime minister William Ewart Gladstone. Gladstone paid little attention to military affairs but he was keen on efficiency. In 1870, he pushed through Parliament major changes in Army organisation. The German Empire's stunning triumph over the Second French Empire in the Franco-Prussian War proved that the Prussian system of professional soldiers with up-to-date weapons was far superior to the traditional system of gentlemen-soldiers that Britain used.
The Childers Reforms of 1881 reorganised the infantry regiments of the British Army. The reforms were done by Secretary of State for War Hugh Childers during 1881, and were a continuation of the earlier Cardwell Reforms.
The Territorial and Reserve Forces Act 1907 was an Act of the Parliament of the United Kingdom that reformed the auxiliary forces of the British Army by transferring existing Volunteer and Yeomanry units into a new Territorial Force (TF); and disbanding the Militia to form a new Special Reserve of the Regular Army. This reorganisation formed a major part of the Haldane Reforms, named after the creator of the Act, Richard Haldane.
The Volunteer Force was a citizen army of part-time rifle, artillery and engineer corps, created as a popular movement throughout the British Empire in 1859. Originally highly autonomous, the units of volunteers became increasingly integrated with the British Army after the Childers Reforms in 1881, before forming part of the Territorial Force in 1908. Most of the regiments of the present Army Reserves Infantry, Artillery, Engineers and Signals units are directly descended from Volunteer Force units.
The Special Reserve was established on 1 April 1908 with the function of maintaining a reservoir of manpower for the British Army and training replacement drafts in times of war. Its formation was part of the military reforms implemented by Richard Haldane, the Secretary of State for War, which also created the Territorial Force. Haldane originally intended that the Militia would provide the reserve, but opposition from its representatives forced him to abolish it and create the Special Reserve instead. Only 60 per cent of the Militia transferred into the new reserve, and it was consistently under strength, particularly in officers. Reservists enlisted for a six-year term of service, and had to undergo six months of basic training on recruitment and three to four weeks training annually.
In the United Kingdom, military conscription has existed for two periods in modern times. The first was from 1916 to 1920, and the second from 1939 to 1960. The last conscripted soldiers left the service in 1963.
The British Militia was the principle military reserve force of the United Kingdom of Great Britain and Ireland. Militia units were repeatedly raised in Great Britain during the Victorian and Edwardian eras for internal security duties and to defend against external invasions. The British Militia was transformed into the Special Reserve under the Territorial and Reserve Forces Act 1907, which integrated all militia formations into the British Army.
The Haldane Reforms were a series of far-ranging reforms of the British Army made from 1906 to 1912, and named after the Secretary of State for War, Richard Burdon Haldane. They were the first major reforms since the "Childers Reforms" of the early 1880s, and were made in the light of lessons newly learned in the Second Boer War.
The Yeomanry and Volunteers Act 1802 was an Act of the Parliament of the United Kingdom affecting the Yeomanry and Volunteers, two of the military Reserve Forces raised in the United Kingdom for home defence. Following the creation of the British Army Regular Reserve in 1859, by the then Secretary of State for War, Sidney Herbert, and re-organised under the Reserve Force Act 1867, were increasingly referred to instead as the Auxiliary Forces or the Local Forces to prevent confusion. It only covered units in England, Wales, and Scotland, with Irish units provided for by the Yeomanry (Ireland) Act 1802.
Until 1689, mutiny was regulated in England by Articles of War instituted by the monarch and effective only in a period of war. This abuse of the crown's prerogative caused Parliament to pass the Petition of Right in 1628. This Act stated that neither civilians nor soldiers and officers who were in England during peace were subject to military courts or law. Only common-law courts and courts of equity could exercise authority over individuals in peacetime England. Because the articles of war did not fall under these court's jurisdiction, military law could not be applied to anyone in England, whether soldier or civilian.
