Staffordshire Regiment
| Dates | Locations | Higher Formation/Remarks |
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| . | The Staffordshire Regiment (The Prince of Wales's) | . |
| 1967.04.01 | Disbanded and concurrently amalgamated with 5th/6th Battalion, The North Staffordshire Regiment (The Prince of Wales's), to form TAVR elements of The Staffordshire Regiment (The Prince of Wales's), concurrently reconstituted as three units: | . |
| . | HQ Company (Staffordshire), Mercian Volunteers, in TAVR II at Walsall, successor to 5th Battalion The South Staffordshire Regiment | . |
| . | C Company (Staffordshire), Mercian Volunteers, in TAVR II at Burton-on-Trent, successor to 5th/6th Battalion The North Staffordshire Regiment | . |
| . | 5th/6th (Territorial) Battalion, The Staffordshire Regiment (The Prince of Wales's), in TAVR III with HQ at Wolverhampton, absorbing elements of 444 (Staffordshire) Lt AD Regiment RA, The Staffordshire Yeomanry (Queen's Own Royal Regiment), 5 Stores Company RAOC, 20 Vehicle Company RAOC and 887 Locating Battery RA | . |
| . | A (South Stafford) Company at Rugeley, successor to 5th Bn The South Staffordshire Regt | . |
| . | B (South Stafford) Company at Walsall, successor to 5th Bn The South Staffordshire Regt | . |
| . | C (North Stafford) Company at Stoke-on-Trent, successor to 5th/6th Bn The North Staffordshire Regt | . |
| 1969.01.01 | TAVR III element reduced to cadre as 5th/6th Battalion, The Staffordshire Regiment (The Prince of Wales's) at Walsall, sponsored by Mercian Volunteers | . |
| 1971.04.01 | Reorganised as four companies: | . |
| . | HQ Company (Staffordshire), Mercian Volunteers at Walsall | . |
| . | C Company (Staffordshire), Mercian Volunteers at Burton-on-Trent | . |
| . | B (5th/6th Battalion Staffordshire Regiment) Company, The Light Infantry and Mercian Volunteers, reconstituted from cadre at Stoke-on-Trent | . |
| . | E Company, The Light Infantry and Mercian Volunteers at Walsall, formed originally as a platoon, but expanded to a company | . |
| 1975.04.01 | Companies redesignated: | . |
| . | HQ Company, 1st Battalion, Mercian Volunteers at Walsall | . |
| . | C Company, 1st Battalion, Mercian Volunteers at Burton-on-Trent | . |
| . | B Company, 2nd Battalion, Mercian Volunteers, at Stoke-on-Trent (Pln at Crewe, Ches) | . |
| . | D Company, 2nd Battalion, Mercian Volunteers at Walsall, redesignation of E Company | . |
| 1988.04.05 | 3rd (Volunteer) Battalion, The Staffordshire Regiment (The Prince of Wales's) formed with HQ at Wolverhampton by reorganisation of Mercian Volunteers | . |
| . | HQ Company at Wolverhampton, relocation of HQ Company 1st Bn Mercian Volunteers | . |
| . | A Company at Tamworth, newly formed | . |
| . | B Company at Stoke on Trent, redesignation of B Company 2nd Bn Mercian Volunteers | . |
| . | C Company at Burton on Trent and Rugeley, redesignation of C Company 1st Bn Mercian Volunteers | . |
| . | D Company at Walsall, redesignation of D Company 2nd Bn Mercian Volunteers | . |
| . | E (HSF) Company at ?, newly formed | . |
| 1992 | Battalion reduced to three rifle company establishment: D Company at Walsall disbanded | . |
| 1999.07.01 | The West Midlands Regiment formed with HQ at Wolseley House, Wolverhampton, by amalgamation of 5th Bn The Royal Regiment of Fusiliers (V), 5th Bn The Light Infantry (V) and 3rd (V) Bn The Staffordshire Regiment | . |
| . | HQ Company and A Company disbanded | . |
| . | C (Stafford) Company at Burton-on-Trent, redesignation of C Coy 3rd Staffords | . |
| . | D (Stafford) Company at Stoke-on-Trent, redesignation of B Coy 3rd Staffords | . |
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