This is a list of British Regular Army regiments after the Army restructuring caused by the 1957 Defence White Paper. The paper set out the reduction in size of the Army to 165,000 following the end of National Service and the change to an entirely voluntary army; units were to be disbanded or amalgamated over two phases, to be completed in 1959 and 1962. Further cuts and amalgamations followed in the 1960s and early 1970s. Cavalry Household Cavalry The Life Guards Royal Horse Guards (The Blues) Royal Armoured Corps Heavy Cavalry 1st The Queen's Dragoon Guards 3rd Carabiniers (Prince of Wales's Dragoon Guards) 4th/7th Royal Dragoon Guards 5th Royal Inniskilling Dragoon Guards Light cavalry 1st The Royal Dragoons The Royal Scots Greys (2nd Dragoons) The Queen's Own Hussars The Queen's Royal Irish Hussars 9th/12th Royal Lancers (Prince of Wales's) 10th Royal Hussars (Prince of Wales's Own) 11th Hussars (Prince Albert's Own) 13th/18th Royal Hussars (Queen Mary's Own) 14th/20th King's Hussars 15th/19th The King's Royal Hussars 16th/5th The Queen's Royal Lancers 17th/21st Lancers The Royal Tank Regiment 1st Royal Tank Regiment 2nd Royal Tank Regiment 3rd Royal Tank Regiment 4th Royal Tank Regiment 5th Royal Tank Regiment Combat Arms Royal Regiment of Artillery Corps of Royal Engineers Royal Corps of Signals Army Air Corps Infantry The infantry in 1962 was divided into 15 separate brigades for administrative purposes: Guards Brigade: Grenadier Guards, Coldstream Guards, Scots Guards, Irish Guards, Welsh Guards. Lowland Brigade: The Royal Scots, King's Own Scottish Borderers, Cameronians (Scottish Rifles) and Royal Highland Fusiliers. Highland Brigade: The Black Watch, Gordon Highlanders, Argyll and Sutherland Highlanders and Queen's Own Highlanders. Home Counties Brigade: The Royal Sussex Regiment, Middlesex Regiment, Queen's Royal Surrey Regiment and Queen's Own Buffs. Fusilier Brigade: Royal Northumberland Fusiliers, Royal Fusiliers (City of London Regt) and Lancashire Fusiliers. East Anglian Brigade: 1st, 2nd and 3rd East Anglian Regiments Forester Brigade: Royal Warwickshire Regiment (until November 1962), Royal Leicestershire Regiment, Sherwood Foresters. Mercian Brigade: Cheshire Regiment, Worcestershire Regiment, Staffordshire Regiment. Welsh Brigade: Royal Welsh Fusiliers, South Wales Borderers, Welsh Regiment. Wessex Brigade: Gloucestershire Regiment, Royal Hampshire Regiment, Devonshire and Dorset Regiment, Duke of Edinburgh's Royal Regiment. Lancastrian Brigade: The Loyal Regiment (North Lancashire), King's Own Royal Border Regiment, King's Regiment and Lancashire Regiment (Prince of Wales's Volunteers). Yorkshire Brigade: The Green Howards, Duke of Wellington's Regiment, Prince of Wales's Own Regiment of Yorkshire and York & Lancaster Regiment.