Commander-in-Chief of the Forces
Longest serving FMPrince George, Duke of Cambridge 5 July 1856 – 1 November 1895
English Army British Army War Office
Type	Senior-mostofficer
Abbreviation	C-in-C
Reports to	Secretary of State for War
Appointer	TheMonarch
Term length	No fixed term
Formation	1645 January 1793
First holder	Captain GeneralSir Thomas Fairfax as General-in-Chief FMJeffery Amherst, 1st Lord Amherst as Commander-in-Chief of the Forces
Final holder	FMFrederick Roberts, 1st Earl Roberts
Abolished	12 February 1904
Succession	Chief of the General Staff

Commander-in-Chief of the Forces, laterCommander-in-Chief, British Army, or justCommander-in-Chief (C-in-C), was (intermittently) the title of the professional head of theEnglish Army from 1660 to 1707 (the English Army, founded in 1645, was succeeded in 1707 by the new British Army, incorporating existing Scottish regiments) and of theBritish Army from 1707 until 1904. The office was replaced in 1904 with the creation of theArmy Council and the title ofChief of the General Staff.

In earlier times, supreme command of the Army had been exercised by the monarch in person. In 1645, after the outbreak of theEnglish Civil War,Parliament appointedThomas Fairfax "Captain General and Commander-in-Chief of all the armies and forces raised and to be raised within theCommonwealth of England".^[1] Thomas Fairfax was the senior-most military officer, having no superior, and held great personal control over the army and its officers. Lord Fairfax was styled "Lord General". None of his successors would use this title. In 1650, Fairfax resigned his post, shortly before theScottish campaign of the War.^[2]

Oliver Cromwell, Fairfax'sLieutenant-General, succeeded him as Commander-in-chief of the Forces.^[2] Under Cromwell, the Commander-in-Chief wasde facto head of state, especially after the dismissal of theLong Parliament. Cromwell held the office until 1653, when he was electedLord Protector.^[3]

On 21 February 1660, the reconstitutedLong Parliament resolved "that GeneralGeorge Monck be constituted and appointedCaptain-General and Commander in Chief, under Parliament, of all the Land-Forces of England, Scotland and Ireland".^[4]

After Monck's death, the post, which gave the holder significant military power, was abolished untilJames Scott, 1st Duke of Monmouth successfully petitionedCharles II and was granted it in 1674.^[5] After Monmouth's execution the post was again not filled until 1690, when it was bestowed uponJohn Churchill, Duke of Marlborough, during theKing's absence in Ireland.^[6] It was likewise conferred onMeinhardt Schomberg, Duke of Schomberg the following year during the King's absence inFlanders, Marlborough having fallen from favour.^[7]

After 1660 it became rare for British sovereigns to lead their troops in battle (with the notable exception ofKing William III); instead, it became normative for command (especially in time of war) to be delegated to an individual, who usually held the appointment ofCaptain General or Commander-in-Chief of the Forces.^[8] (In early years these two titles were often used interchangeably, and/or the appointments were held concurrently). The office was not always filled: for example,James II and William III both functioned themselves as Commander-in-Chief; at other times the appointment simply lapsed (especially if there was no perceived immediate military threat).^[8]

With the appointment of GeneralLord Amherst in 1793, the Commander-in-Chief was given authority over matters of discipline, over supplies, training and promotions in the British Army. The establishment of amilitary staff took place under the oversight of his successor,Frederick, Duke of York.^[9]

In most instances, Commanders-in-Chief of the Forces were notCabinet members (onlyConway andWellington had a seat in Cabinet by virtue of holding this office;Ligonier andGranby were also in Cabinet during their time in office, but in both cases sat asMaster-General of the Ordnance).^[8] Instead, the British Army was represented variously and tenuously in government by thePaymaster of the Forces (Paymaster General from 1836), theMaster-General of the Ordnance (who did not invariably have a seat in Cabinet), theSecretary at War (who was not usually a member of the Cabinet) and (from 1794) theSecretary of State for War.^[8]

With the demise of theBoard of Ordnance in the wake of theCrimean War the Commander-in-Chief assumed command of the Ordnance troops: theRoyal Regiment of Artillery and theCorps of Royal Engineers. The momentum of reform at this time, however, was toward increasing the authority of theSecretary of State for War. From the passing of theWar Office Act 1870, as part of theCardwell Reforms, the Commander-in-Chief was made clearly subordinate to the Secretary of State, to serve as the latter's principal military adviser, and was made to move out of his traditional office above the arch atHorse Guards and into theWar Office. Nevertheless, in 1888 he is still described as having responsibility for all personnel andmatériel issues for the army and auxiliary forces, and in 1895 he took on the responsibilities ofchief of staff.^[9]

The appointment of Commander-in-Chief remained in the personal gift of the monarch, and its independence was guarded byQueen Victoria (among others) as emblematic of the notion that command of the Army was vested inthe Crown; during her reign, however, the office was (in 1870) made much more clearly subordinate to theSecretary of State for War (and to Parliament).^[10]

Following the recommendations of theEsher Report, the office was replaced in 1904 with the creation of theArmy Council and the appointment ofChief of the General Staff. The title reverted to the monarch, who remains (titular) "Commander-in-chief of the British Armed Forces".^[11]

The British military (ie., that part of the armed forces committed to land warfare, and not to be confused with the naval forces) was originally made up of severalforces, including the British Army, the others being: the Ordnance Military Corps of theBoard of Ordnance (including theRoyal Artillery,Royal Engineers, andRoyal Sappers and Miners), being a professional, orregular force like the army);^{[12][13][14][15]} theMilitia Force (orConstitutional Force),^{[16][17][18][19]} being a conscripted reserve infantry force able to be called out in times of emergency for home defence; theYeomanry,^[20] being a similar mounted force; and theVolunteer Corps, made up of voluntary reserve units that normally only existed during wartime.^[21][22] The Board of Ordnance was abolished in 1855 and its military corps,commissariat stores, transport, barracks and other departments were absorbed into the British Army, which was also calledRegular Force orRegular Army). TheReserve Forces were also known as theAuxiliary Forces and theLocal Forces (as their personnel could not originally be compelled to serve outside their local areas), and were re-organised in the 1850s with the Militia becoming voluntary (but with recruits engaging for a period of service that they were obliged to complete),^[23] and theVolunteer Force permanently established. These forces were increasingly integrated with the British Army during the final decades of the Nineteenth Century and the first decades of the Twentieth Century. The Yeomanry and Volunteer Force became theTerritorial Force in 1908, and the Militia became the Special Reserve (and ceased to exist after the First World War).^{[24][25][26][27][28][29][30][31][32][33][34][35]}

The following table lists all those who have held the post of Commander-in-Chief of the Forces or its preceding positions. Ranks and honours are as at the completion of their tenure:
† denotes people who died in office.

No.	Portrait	Name	Took office	Left office	Time in office	Ref.
Parliamentary General-in-Chief Command
1		Fairfax, ThomasCaptain General Sir Thomas Fairfax (1612–1671)	1645	1650	4–5 years	[1]
2		Cromwell, OliverCaptain General Oliver Cromwell (1599–1658)	1650	1653	2–3 years	[2]
General-in-Chief Command
1		Monck, GeorgeCaptain General George Monck, 1st Duke of Albemarle (1608–1670)	3 August 1660	3 January 1670 †	9 years, 153 days	[36]
Position vacant (3 January 1670 – 30 March 1674)
2		Scott, JamesGeneral James Scott, 1st Duke of Monmouth (1649–1685)	30 March 1674	1 December 1679	5 years, 246 days	[37]
Position vacant (1 December 1679 – 3 June 1690)
3		Churchill, JohnGeneral John Churchill, 1st Earl of Marlborough (1650–1722)	3 June 1690	30 April 1691	331 days	[6]
4		Schomberg, MeinhardtGeneral Meinhardt Schomberg, 3rd Duke of Schomberg (1641–1719)	30 April 1691	1691	0 years	[7]
Position vacant (1691 – 24 April 1702)
(3)		Churchill, JohnGeneral John Churchill, 1st Earl of Marlborough (1650–1722)	24 April 1702	1711	8–9 years	[6][38]
5		Butler, JamesGeneral James Butler, 2nd Duke of Ormonde (1665–1745)	1 January 1711	1714	2–3 years	[39]
(3)		Churchill, JohnGeneral John Churchill, 1st Earl of Marlborough (1650–1722)	1714	1722	7–8 years	[8]
Position vacant (1714 – 1 January 1744)
6		Dalrymple, JohnField Marshal John Dalrymple, 2nd Earl of Stair (1673–1747)	1 January 1744	1744	0 years	[40]
7		Wade, GeorgeField Marshal George Wade (1673–1748)	1744	1745	0–1 years	[41]
Position vacant (1745 – 1745)
8		Duke of Cumberland, Prince WilliamGeneral Prince William, Duke of Cumberland (1721–1765)	1745	24 October 1757	11–12 years	[42]
9		Ligonier, JohnField Marshal John Ligonier, 1st Earl Ligonier (1680–1770)	24 October 1757	1766	8–9 years	[43][44]
10		Manners, JohnLieutenant-General John Manners, Marquess of Granby (1721–1770)	13 August 1766	17 January 1770	3 years, 157 days	[45]
Position vacant (17 January 1770 – 19 March 1778)
11		Amherst, JeffreyField Marshal Jeffery Amherst, 1st Baron Amherst (1717–1797)	19 March 1778	29 March 1782	4 years, 10 days	[46]
12		Conway, HenryField Marshal Henry Seymour Conway (1721–1795)	29 March 1782	21 January 1793	10 years, 298 days	[47]
Commander-in-Chief
1		Amherst, JeffreyField Marshal Jeffery Amherst, 1st Lord Amherst (1717–1797)	January 1793	February 1795	2 years, 31 days	[48]
2		Duke of York, Prince FrederickField Marshal Prince Frederick, Duke of York (1763–1827)	3 April 1795	25 March 1809	13 years, 356 days	[49]
3		Dundas, DavidGeneral Sir David Dundas (1735–1820)	18 March 1809	26 May 1811	2 years, 69 days	[50]
(2)		Duke of York, Prince FrederickField Marshal Prince Frederick, Duke of York (1763–1827)	29 May 1811	5 January 1827 †	15 years, 221 days	[51]
4		Wellesley, ArthurField Marshal Arthur Wellesley, 1st Duke of Wellington (1769–1852)	22 January 1827	22 January 1828	1 year	[52]
5		Hill, RowlandGeneral Rowland Hill, 1st Lord Hill (1772–1842)	22 January 1828	15 August 1842	14 years, 205 days	[53]
(4)		Wellesley, ArthurField Marshal Arthur Wellesley, 1st Duke of Wellington (1769–1852)	15 August 1842	14 September 1852 †	10 years, 30 days	[54]
6		Hardinge, HenryField Marshal Henry Hardinge, 1st Viscount Hardinge (1785–1856)	28 September 1852	5 July 1856	3 years, 281 days	[55]
7		Duke of Cambridge, Prince GeorgeField Marshal Prince George, Duke of Cambridge (1819–1904)	5 July 1856	1 November 1895	39 years, 119 days	[56]
8		Wolseley, GarnetField Marshal Garnet Wolseley, 1st Viscount Wolseley (1833–1913)	1 November 1895	3 January 1901	5 years, 63 days	[57]
9		Roberts, FrederickField Marshal Frederick Roberts, 1st Earl Roberts (1832–1914)	3 January 1901	12 February 1904	3 years, 40 days	[58]

• Gaunt, Peter (1996),Oliver Cromwell, Blackwell,ISBN 0-631-18356-6
• Glover, Richard (1963).Peninsular Preparation: The Reform of the British Army 1795–1809. Cambridge University Press.
• Heathcote, Tony (1999).The British Field Marshals 1736–1997. Pen & Sword Books Ltd.ISBN 0-85052-696-5.

• Regiments.org
• Everything

• 1645 establishments in England
• 1904 disestablishments in the United Kingdom
• Senior appointments of the British Army
• British military commanders in chief

• Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference
• Wikipedia articles incorporating text from the 1911 Encyclopædia Britannica
• Wikipedia articles incorporating a citation from the ODNB
• All articles with dead external links
• Articles with dead external links from February 2025
• CS1: unfit URL
• Articles with short description
• Short description is different from Wikidata
• Use British English from August 2019
• All Wikipedia articles written in British English
• Use dmy dates from August 2019