9th/12th Royal Lancers
| Dates | Locations | Higher Formation/Remarks |
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| . | 9th/12th Royal Lancers (Prince of Wales's) | . |
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| 1960.09.11 | Formed by amalgamation of 9th Queen's Royal Lancers, and 12th Royal Lancers (Prince of Wales's) | . |
| 1960.09 | England: Bhurtpore Barracks, Tidworth | . |
| 1960.10 | Northern Ireland: Lisanelly Barracks, Omagh: C Sqn at Castle Archdale | 3 Division: Recce Regiment |
| . | Â Sep 62: Regiment sailed from Southampton for Aden, equipped as an armoured car regiment | . |
| 1962.09 | Aden: Little Aden: Sqn at Sharjah | Armd Car Role |
| 1963.07 | England: | . |
| 1963.11 | Germany: Imphal Barracks, Osnabruck | 12 Infantry Brigade Group |
| . | Aug 64 - Aug 65: Aden? | . |
| . | Â 15 Jul 65: Her Majesty Queen Elizabeth, Colonel-in-Chief, reviewed a mounted parade of the regiment on Achmer Heath outside Osnabruck | . |
| 1969.01 | England: Cambrai Barracks, Catterick: A Squadron detached to Smuts Barracks, Berlin | RAC Training Regiment |
| . | Â 9 May 70: Regiment was once again honoured with a visit by the Colonel-in-Chief | . |
| 1971.01 | Germany: Hobart Barracks, Detmold, reorganised as an armoured regiment | 20 Armd Brigade |
| . | 10 May 1972: Regimentâs close ties with the City of Derby were cemented by the award of the Freedom of the City | . |
| . | 15 Sep 72 - 15 Jan 73: C Squadron converted to armoured cars in the autumn for a four month emergency tour in Northern Ireland, where it was based at Gosford Castle, County Armagh | . |
| . | 15 May - 19 Sep 73: Northern Ireland, Gosford Castle: B Squadron | . |
| . | 8 Jan - 8 May 75: Northern Ireland: Gough Barracks, Armagh | . |
| 1976.05.22 | Northern Ireland: Lisanelly Camp, Omagh | . |
| 1977.11.25 | England: Aliwal Barracks, Tidworth | Recce Role |
| . | Nov 77 - May 79: C Squadron permanently attached to the Sovereign Base Area in Cyprus | SBA Sqn |
| . | Mar  Sep 78: A Sqn, UN Scout Car Sqn Nicosia, Cyprus | UN Tour |
| . | 5 May 1979: Colonel-in-Chief, Her Majesty Queen Elizabeth, The Queen Mother, presented the Regiment with its new 9/12L Guidone on the Tidworth Tattoo ground | . |
| 1979.05 | Germany: Swinton Barracks, Munster as an Armoured Reconnaissance regiment, equipped with a mixture of wheeled and tracked reconnaissance vehicles | 5 Field Force |
| 1980.11 | Germany: Campbell Barracks, Hohne: Armoured Recce Regiment, fully equipped with the new tracked Combat Vehicle Reconnaissance family | 1 Armd Division |
| . | 7 Jul - 21 Sep 82: C Squadron went to Northern Ireland to provide the Maze Prison Guard Force for three months | . |
| . | Â Jul 82: Colonel in Chief visited the remainder of the Regiment in Hohne | . |
| 1984.02 | Germany: Northampton Barracks, Wolfenbuttel, reorganising into four sabre squadrons, handing its Scorpions over to the armoured regiments and taking back the Striker, guided missile system from the Royal Artillery. The basic reconnaissance vehicle then became the Scimitar , on "B" Squadron's handover of the close reconnaissance responsibilities to parent battle groups | 1 (Br) Corps: Recce Role |
| 1987.01 | England: Carver Barracks, Wimbish, with three sabre squadrons and one Guided Weapons squadron | 3 Division: Med Recce Role |
| . | Jul 87 - Jan 88: Cyprus, UNFICYP Force Reserve Sqn: A Sqn only | . |
| . | Jul 88 - Jan 89: Cyprus, UNFICYP Force Reserve Sqn: D Sqn only | . |
| . | Jan - Jul 90: Cyprus, UNFICYP Force Reserve Sqn: C Sqn only | . |
| 1991.07 | Germany: Harewood Barracks, Herford | 4 Armd Division: Recce Role |
| . | Apr - Jun 1992: C Sqn to HMP Maze, Northern Ireland | . |
| . | Oct 92: B Sqn; Bosnia (Op Grapple 1 with 1 Cheshire) | . |
| . | 28 Jul 93 - 21 Jan 94: A & D Sqns; Northern Ireland: Belfast | . |
| 1994.07 | England: Bovington and Lulworth. B Sqn at Harman Lines and Recce Troop at Battlesbury Bks, Warminster | RAC Centre Regt |
| 1998.04 | England: Robertson Barracks, Swanton Morley | Recce Role |
| . | Dec 98 - May 99: Bosnia | . |
| 2000.08 | Germany: Haig Barracks, Hohne | Recce Role |
| . | 2001 (Kosovo) [one sqn] | . |
| . | 2003 (Bosnia) [B Sqn] | . |
| . | Oct 03 - Mar 04: Iraq [A & C Sqns] 3 Division recce: C Sqn attached to QRH | . |
| . | Nov 05 - Apr 06: Iraq (Op Telic 7 - B and C Squadrons only) | 7 Armoured Brigade |
| . | Jun - Dec 08: Iraq (Op Telic 12) | 7 Armoured Brigade |
| . | 1 May 2015: Will amalgamate with The Queens Royal Lancers at Catterick to form The Royal Lancers | . |
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