| Dates | Locations | Higher Formation | Remarks |
| | | |
| 1969.06.11 | Formed by amalgamation of 1st Bn, The South Wales Borderers, and 1st Bn, The | | |
| | Welch Regiment | | |
| 1969.06 | England: Dover?? | | |
| 1969.11 | Germany: Quebec Barracks, Osnabrück | 12 Infantry Brigade | |
| Sep 70: Quebec Barracks, Osnabrück | 12 Mechanised Brigade | |
| Oct 70 - Feb 71: Northern Ireland: Belfast (Hastings Street) | | |
| | Mar - Jul 72: Northern Ireland: Belfast (Ardoyne) | | |
| 1973.11 | Northern Ireland: Palace Barracks, Holywood | 39 Infantry Brigade | |
| 1975.05 | Berlin: Brooke Barracks | Berlin Brigade | |
| 1977.05 | England: Aldershot | 6 Field Force | |
| Aug 77 - Feb 78: Belize | | |
| 1977: Bermuda | | |
| Dec 78 - Apr 79: Northern Ireland: Armagh | | |
| 1980: Hong Kong | | |
| May - Jun 81: Northern Ireland: Belfast (Spearhead for Funeral of Bobby Sands) | | |
| | Jan 82: England: Aldershot | 5 Infantry Brigade | |
| 1982.08 | Germany: Stornoway Barracks, Lemgo | 20 Armoured Brigade | |
| Sep 83 - Feb 84: Northern Ireland: Belfast (North Queen) | | |
| | Sep 86 - Jan 87: Northern Ireland: Op ‘Cara Cara’ | | |
| 1988.08 | England: Battlesbury Barracks, Warminster | Infantry Demo Bn | |
| 1990.07 | Hong Kong: Stanley Fort | | |
| 1992.10 | England: Clive Barracks, Tern Hill | 143 Brigade | |
| 1994.09 | Northern Ireland: Shackleton Barracks, Ballykelly | 8 Infantry Brigade | |
| 1996.07 | England: Cavalry Barracks, Hounslow | London District | |
| 1998.01 | Germany: Barker Barracks, Paderborn | 20 Armoured Brigade | Warrior |
| Feb - Aug 98: Northern Ireland Tour: East Tyrone | | |
| Oct 99 - Mar 00: Bosnia | | |
| Nov 01 - May 02: Kosovo | | |
| | Nov 03 - Apr 04: Iraq (Op Telic 3) | 20 Armoured Brigade | Warrior |
| 2005.02 | England: Lucknow Barracks, Tidworth | 12 Mechanised Brigade | Mechanized Infantry |
| Apr - Nov 05: Iraq: OP Telic 6 | 12 Mechanised Brigade | |
| 1 Mar 06: Renamed 2nd Battalion, The Royal Welsh (The Royal Regiment of Wales) | | |
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