III Corps (United Kingdom)

III Corps was an army corps of the British Army formed in both the First World War and the Second World War.

Prior to World War I
In 1876, a mobilisation scheme for eight army corps was published, with '3rd Corps' headquartered at Croydon and composed of the guards regiments. In 1880 its order of battle was:
 * 1st Division (Croydon)
 * 1st Brigade (London)
 * 1st Bn. Grenadier Guards (Wellington Barracks), 2nd Bn. Coldstream Guards (The Tower), 2nd Bn. Scots Guards (Chelsea)
 * 2nd Brigade (Croydon)
 * 3rd Bn. Grenadier Guards (Chelsea), 1st Bn. Coldstream Guards (Shorncliffe), 1st Bn. Scots Guards (Wellington Barracks)
 * Divisional Troops
 * 1st Bn. 60th Foot (Winchester), Staffordshire Yeomanry (Lichfield), 9th Company Royal Engineers (Chatham)
 * Artillery
 * C/5th Brigade RA (Ipswich), B/5th Brigade RA (Chatham), B/6th Brigade RA (Woolwich)
 * 2nd Division (Red Hill)
 * 1st Brigade (Red Hill)
 * Kilkenny Militia (Kilkenny), King's County Militia (Parsonstown), Limerick County Militia (Limerick)
 * 2nd Brigade (Red Hill)
 * 1st Surrey Militia (Richmond), 2nd Surrey Militia (Guildford), 3rd Surrey Militia (Kingston)
 * Divisional Troops
 * Tyrone Militia (Omagh), Warwickshire Yeomanry (Warwick)
 * Artillery
 * L/3rd Brigade RA (Hilsea), L/4th Brigade RA (Hilsea), C/6th Brigade RA (Woolwich)
 * 3rd Division (Tunbridge Wells)
 * 1st Brigade (Tunbridge Wells)
 * West Kent Militia (Maidstone), 4th Middlesex Militia (Hounslow), London Militia (London)
 * 2nd Brigade (Maidstone)
 * East Middlesex Militia (Hounslow), 2nd Middlesex Militia (Barnet), 3rd Middlesex Militia (Turnham Green)
 * Divisional Troops
 * Sussex Militia (Chichester), Leicestershire Yeomanry (Leicester)
 * Artillery
 * B/1st Brigade RA (Shorncliffe), C/1st Brigade RA (Shorncliffe)
 * Cavalry Brigade (Ashford)
 * 1st Life Guards (London), 2nd Life Guards (Windsor), Royal Horse Guards (London), East Kent Yeomanry (Canterbury), K Battery B Brigade RHA (Canterbury)
 * Corps Artillery (Croydon)
 * K Battery A Brigade RHA (Exeter), F Battery B Brigade RHA (Exeter)

This scheme had been dropped by 1881. The Stanhope Memorandum of 1891 (drawn up by Edward Stanhope when Secretary of State for War) laid down the policy that after providing for garrisons and India, the army should be able to mobilise three army corps for home defence, two of regular troops and one partly of militia, each of three divisions. The 1901 army estimates introduced by St John Brodrick allowed for six army corps based on the six regional commands (Aldershot, Southern, Irish, Eastern, Northern and Scottish). From 1 October 1901, the Duke of Connaught held the dual commands of CinC Ireland and GOCinC III Corps. Under Army Order No 38 of 1907, the title III Corps disappeared, but the Irish Command was constituted as a corps comprising 3rd Cavalry Brigade, 5th Infantry Division and 6th Infantry Division.

World War I
Pre-war planning for the British Expeditionary Force (BEF) did not envisage any intermediate headquarters between GHQ and the six infantry divisions. However, on mobilisation the decision was made to conform to the two-division army corps organisation employed by the French armies alongside which the BEF was to operate and corps HQs therefore had to be improvised. III Corps HQ formed in France on 31 August 1914 under Sir William Pulteney, taking over 4th Division, part of which had already fought at Le Cateau, and 6th Division, which arrived in early September. It was first engaged in the First Battle of the Marne, and remained on the Western Front throughout the war.

Composition of III Corps in World War I
The composition of army corps changed frequently. Some representative orders of battle for III Corps are given here.

As initially constituted:

GOC: Maj-Gen William Pulteney
 * Brigadier-General, General Staff: J.P. Du Cane
 * Brigadier-General, Royal Artillery: E.J. Phipps-Hornby, VC
 * Colonel, Royal Engineers: Brig-Gen F.M. Glubb


 * 4th Division
 * 6th Division
 * 19th Independent Infantry Brigade (attached to III Corps 6 October 1914; became part of 6th Division 12 October 1914)

Order of Battle at start of the Battle of the Somme, 1 July 1916:

GOC: Lieut-Gen Sir William Pulteney
 * 8th Division
 * 19th (Western) Division
 * 34th Division

Order of Battle during the final advance in Artois, 8 October 1918:

GOC: Lieut-Gen Richard Butler
 * 55th (West Lancashire) Division
 * 74th (Yeomanry) Division

World War II
During World War II III Corps was formed in France under the command of Lieut-Gen Sir Ronald Adam to control forces of the British Expeditionary Force, after the expansion of that force had rendered control by just two corps headquarters cumbersome. The Corps was withdrawn from Dunkirk after the defeat of British forces by the Germans in May 1940.

Composition of III Corps in World War II
Order of Battle at Dunkirk:

GOC: Lieut-Gen Sir Ronald Adam
 * 42nd (East Lancashire) Division
 * 44th (Home Counties) Division
 * Royal Artillery
 * 5th Regiment Royal Horse Artillery
 * 97th (Kent Yeomanry) Army Field Regiment
 * 51st (Midland), 56th (Highland) Medium Regiments
 * 54th (Argyll & Sutherland Highlanders) Light Anti-Aircraft Regiment
 * 3rd Survey Regiment
 * Royal Engineers
 * 213th, 214th, 217th Army Field Companies
 * 293rd Corps Field Park Company
 * 514th Corps Field Survey Company
 * Infantry—Machine Gun
 * 7th Battalion The Royal Northumberland Fusiliers
 * 1st/9th Battalion The Manchester Regiment
 * 1st Battalion Princess Louise's Kensington Regiment, The Middlesex Regiment

After commanding forces in the United Kingdom during late 1940, the corps was used for deception purposes. It eventually ended up being transferred to Persia as part of Tenth Army. It took command of a number of formations there, including the British 5th Infantry Division.

On 16 October 1944 it became the H.Q. for Lieut.Gen. Ronald Scobie for operations in the Greek Civil War: at this point it received operational formations. On 17 December 1944 it was redesignated HQ Land Forces and Military Liaison (Greece).

General Officers Commanding
Commanders have included:
 * 1 October 1901- (August 1904?) General the Duke of Connaught and Strathearn
 * Aug 1914-Feb 1918 Lieutenant-General William Pulteney
 * Feb 1918-Sep 1918 Lieutenant-General Richard Butler


 * 1939-Jun 1940 Lieutenant-General Ronald Adam
 * Jun 1940-Nov 1940 Lieutenant-General James Marshall-Cornwall
 * 1940-1943 Lieutenant-General Desmond Anderson
 * Dec 1943-Dec 1944 Lieutenant-General Ronald Scobie