Wessex Yeomanry
| Date | Unit | Higher Formation |
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| . | The Wessex Yeomanry | . |
| 1971.04.01 | Formed with HQ at Cirencester as a Home Defence Infantry Battalion by reconstitution as squadrons of old regiments which had been reduced to cadre in 1969: The Royal Gloucestershire Hussars, The Royal Wiltshire Yeomanry (Prince of Wales's Own) and The Royal Devon Yeomanry/1st Rifle Volunteers. The Squadrons kept the badge of their predecessor | . |
| . | A (Royal Gloucestershire Hussars) Squadron at Gloucester | . |
| . | B (Royal Wiltshire Yeomanry) Squadron at Old Sarum, Salisbury | . |
| . | C (Royal Gloucestershire Hussars) Squadron at Stroud | . |
| . | D (Royal Devon Yeomanry/1st Rifle Volunteers) Squadron at Barnstaple; subtitle changed 16 Apr. 1974 to Royal Devon Yeomanry | . |
| 1974.04.16 | D Squadron subtitled (Royal Devon Yeomanry) | . |
| 1979.06.08 | Redesignated The Royal Wessex Yeomanry | . |
| 1983.04.01 | Converted to Light Reconnaissance Home Defence role as part of the Royal Armoured Corps | . |
| 198? | E (Home Service Force) (Royal Wiltshire Yeomanry) Squadron formed at old Sarum, Salisbury | . |
| 1992 | Squadrons reorganised: C Sqn reorganised as HQ (Royal Gloucestershire Hussars) Squadron at Cirencester and Stroud; E (HSF) Squadron disbanded | . |
| 1999.07.01 | Regiment reorganised as result of the Strategic Defence Review | . |
| . | A (Dorset Yeomanry) Armoured Replacement Squadron at Bovington, formed by reduction of that regiment; moved later to Wareham | . |
| . | B (Royal Wiltshire Yeomanry) Squadron at Old Sarum, Salisbury | . |
| . | C (Royal Gloucestershire Hussars) Squadron at Cirencester, amalgamation of A Squadron and HQ Squadron | . |
| . | D (Royal Devon Yeomanry) Squadron at Barnstaple with 4 Troop formed at Paignton from elements 4th (V) Battalion, The Devonshire and Dorset Regiment | . |
| 2013 | Regimental HQ at Bovington | . |
| . | A (Dorset Yeomanry) Squadron at Bovington. To re-role as a HQ (Dorset Yeomanry) Squadron by Dec 2016 | . |
| . | B (Royal Wiltshire Yeomanry) Squadron at Old Sarum, Salisbury. Detachment at Swindon to be formed from elements of the withdrawn A (Royal Wiltshire Yeomanry) Squadron of The Royal Yeomanry by Dec 2016 | . |
| . | C (Royal Gloucestershire Hussars) Squadron at Cirencester. Detachment at Hereford to be formed from elements of the withdrawn B (Shropshire Yeomanry) Squadron of The Royal Mercian and Lancastrian Yeomanry by Dec 2016 | . |
| . | D (Royal Devon Yeomanry) Squadron at Barnstaple and Paignton. To be renamed A (Royal Devon Yeomanry) Squadron and based at Exeter and Paignton by Dec 2016 | . |
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