Light Infantry and Mercian Volunteers
| Dates | Locations | Higher Formation/Remarks |
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| . | The Light Infantry and Mercian Volunteers | . |
| 1971.04.01 | Formed with Headquarters at Wolverhampton from cadres of The Worcestershire Regiment, 5th/6th Battalion The Staffordshire Regiment and The King's Shropshire and Herefordshire Light Infantry | . |
| . | A (Worcestershire Regiment) Company at Worcester. Formed from cadre The Worcestershire Regiment | . |
| . | B (5th/6th Battalion Staffordshire Regiment) Company at Stoke-on-Trent. Formed from cadre 5th/6th Battalion The Staffordshire Regiment | . |
| . | C (King's Shropshire Light Infantry) Company at Wellington. Formed from cadre The King's Shropshire and Herefordshire Light Infantry | . |
| . | D (Herefordshire Light Infantry) Company at Ross-on-Wye. Formed from cadre The King's Shropshire and Herefordshire Light Infantry | . |
| . | E Company at Walsall. Formed originally as a platoon, but expanded to a company | . |
| 1975.04.01 | Battalion reorganised to form 2nd Battalion Mercian Volunteers. | . |
| . | A Company at Worcester, B Company at Stoke and E Company at Walsall reorganised as A, B and D Company 2nd Battalion Mercian Volunteers respectively | . |
| . | C Company at Wellington redesignated as E Company 5th Battalion The Light Infantry (Volunteers) | . |
| . | D Company at Ross-on-Wye redesignated as D Company 6th Battalion The Light Infantry (Volunteers) | . |
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