Inniskilling Fusiliers
| Dates | Locations | Higher Formation/Remarks |
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| . | 5th Battalion, The Royal Inniskilling Fusiliers | . |
| 1947.01.01 | Re-formed in T.A. with HQ at Londonderry as the infantry for Londonderry, Fermanagh and Tyrone counties | . |
| 1967.04.01 | Disbanded and concurrently reconstituted as: | . |
| . | A Company (Royal Inniskilling Fusiliers), North Irish Militia, formed in TAVR II at Omagh with det at Enniskillen | . |
| . | 5th (Territorial) Battalion, The Royal Inniskilling Fusiliers, formed in TAVR III with HQ at Omagh, including elements of The North Irish Horse | . |
| . | A Company at Enniskillen | . |
| . | B Company at Dungannon | . |
| 1969.04.01 | TAVR III element reduced to cadre as 5th Battalion, Royal Inniskilling Fusiliers (Royal Irish Rangers) at Omagh, sponsored by North Irish Militia | . |
| 1975.04.01 | Cadre disbanded | . |
| 1993.04.01 | A Company disbanded, less elements to HQ Company, 4th/5th Battalion, The Royal Irish Rangers (V), and Royal Inniskilling Fusiliers lineage discontinued | . |
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