Mercian Regiment
| Dates | Locations | Higher Formation/Remarks |
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| . | 4th Battalion The Mercian Regiment | . |
| 2007.08.24 | Formed by redesignation of The West Midlands Regiment (Volunteers) with HQ at Wolverhampton | . |
| . | HQ Company at Wolverhampton | . |
| . | A (Fusilier) Company at Sheldon, Birmingham with Pln at Coventry | . |
| . | B (Cheshire) Company at Ubique Barracks, Widnes by amalgamation of B Company and D Company, King's and Cheshire Regiment | . |
| . | C (Worcestershire and Sherwood Foresters) Company at Kidderminster? and Mansfield?, amalgamation of C Company West Midlands Regiment and D Company East of England Regiment | . |
| . | D (Staffordshire) Company at Burton-on-Trent and Stoke-on-Trent, amalgamation of C Company and D Company, The West Midlands Regiment | . |
| . | E (Light Infantry) Company at Shrewsbury with Recce Pln at Hereford | . |
| 2013 | Battalion HQ and HQ Company at Wolverhampton | . |
| . | A (Fusilier) Company at Sheldon, Birmingham | . |
| . | B Company at Ubique Barracks, Widnes, to be disbanded by 1 Apr 2018 | . |
| . | C (East of England) Company at Mansfield, to absorb 307 Battery, 100th Regiment RA at Nottingham which will re-role to infantry by 1 Jan 2014 | . |
| . | D (Staffords) Company at Crewe and Stoke-on-Trent. To consolidate at Stoke-on-Trent by Dec 2016 | . |
| . | E (Rifles) Company at Shrewsbury, to join 6th Battalion The Rifles by Dec 2014 | . |
| . | F Company at Burton-upon-Trent and Kidderminster. To be disbanded by Dec 2016 | . |
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