Prior to the
Crimean War, the British military (i.e.,
land forces) was made up of multiple separate forces, with a basic division into the
Regular Forces (including the
British Army, composed primarily of cavalry and infantry, and the
Ordnance Military Corps of the
Board of Ordnance, made up of the
Royal Artillery,
Royal Engineers, and the
Royal Sappers and Miners though not including the originally civilian
Commissariat Department, stores and supply departments, all of which, with barracks and other departments, were absorbed into the British Army when the Board of Ordnance was abolished in 1855). and the
Reserve Forces. After the 1855 consolidation of the Regular Forces (ignoring minor forces such as the
Yeomen Warders and the
Yeomen of the Guard) into the
Regular Force (i.e., the
British Army), there still remained a number of British military (not to be confused with
naval) forces that were not part of the British Army; specifically the part-time
Reserve Forces, which had at various times included the
Honourable Artillery Company,
Militia Force (also referred to as the
Constitutional Force, and originally an infantry force), the
Yeomanry Force (made up of mounted units, organised similarly to the Volunteer Force),
Volunteer Force, and
Fencibles. Equivalents were also raised in the
Crown Dependencies and many colonies. Known collectively as the
Reserve Forces, most of these had been allowed to lapse after the Napoleonic Wars, although the Yeomanry was maintained to potentially support the civil authorities against civil unrest, as at the 1819
Peterloo massacre, the Militia remained as a
paper tiger, and rifle clubs were encouraged as the backbone against which the Volunteer force might be re-raised. The Militia and Volunteer Force were both re-organised in the 1850s. These forces were originally local-service, embodied during wartime or emergency, and placed under the control of
Lord-Lieutenants of counties, and, in
British colonies, under the
colonial governors. After the British Army's
Regular Reserve was created in 1859, by
Secretary of State for War Sidney Herbert, and re-organised under the
Reserve Force Act 1867 (
30 & 31 Vict. c. 110), the Reserve forces, to avoid confusion, were generally known as the
Auxiliary Forces or
Local Forces. The
Regulation of the Forces Act 1871 removed the Lord-Lieutenant as head of the county reserve forces and they were increasingly integrated with the British Army. A large number of
Volunteer Corps were formed during the
French Revolutionary War but were stood down afterwards. Following the
Crimean War, it was painfully clear to the
War Office that, with half of the British Army dispositioned around the Empire on garrison duty, it had insufficient forces available to quickly compose and despatch an effective expeditionary force to a new area of conflict, unless it was to reduce the British Isles' own defences. During the
Crimean War, the War Office had been forced to send
militia and
yeomanry to make up the shortfall of soldiers in the
Regular Army. The situation had been complicated by the fact that both auxiliary forces were under the control of the
Home Office until 1855. Tensions rose between the United Kingdom and France following the
Orsini affair, an assassination attempt on
Emperor Napoleon III on 14 January 1858. It emerged that the would-be assassin,
Felice Orsini had travelled to England to have the
bombs used in the attack manufactured in
Birmingham. == Creation of the Volunteer Force ==