1st Battalion, The Middlesex Regiment (Duke of Cambridge's Own)
| Dates | Locations | Higher Formation | Remarks |
| | | |
| 1944.06 | NW Europe | | |
| 1945 | Germany: Albuhera Barracks, Rendsburg | | |
| 1946 | Germany: Aldershot Barracks, Iserlohn | | |
| 1946 | Germany: Hamburg | HQ Schleswig-Holstein Sub Area |
| 1947: converted back to infantry | | |
| | Feb 47: Germany: Hamburg | 2 Infantry Division | |
| 1947 | England: Inglis Barracks, Mill Hill | | |
| | 1 Aug 48: amalgamated with 2nd Battalion without change of title | | |
| 1948.09 | England: Chelsea Barracks, London | | Royal Guard duties |
| 1949.03 | Hong Kong: | 27 Infantry Brigade | |
| 1950.08.29 | Korea: Arrived at Pusan | 27 Infantry Brigade | |
| Aug 50 - 30 Sep 50: Korea | 27 Infantry Brigade | |
| | 1 Oct 50 - Jun 51: Korea | 27 Commonwealth Brigade | |
| 1951.06 | Hong Kong: | | |
| 1952.11 | England: | | |
| 1953 | Austria | | |
| 1955.07 | England: | | |
| 1955.10 | Cyprus: Dhekelia | 51 Infantry Brigade | |
| | 1955 - 1958: Aqaba (one coy) | | |
| 1958.10 | Germany: Gordon Barracks, Hameln | 11 Infantry Brigade Group | |
| 1962.04 | England: | | |
| 1963 | Gibraltar: South Barracks | | |
| 1965.10 | Northern Ireland: Palace Barracks, Holywood | | |
| Mar 66 - Oct 66: British Guiana | | |
| 31 Dec 66: Renamed 4th Battalion, The Queen's Regiment (Middlesex) upon formation of a "large" regiment from the Home Counties Brigade | | |
| | | |
2nd Battalion, The Middlesex Regiment (Duke of Cambridge's Own)
| Dates | Locations | Higher Formation | Remarks |
| | | |
| 1944.06 | NW Europe | | |
| 1945 | Palestine | | |
| Sep 46 - Jan 47: Egypt | | |
| | 1947: Egypt | | |
| 1948.05 | England: Inglis Barracks, Mill Hill | | |
| 1 Aug 48: amalgamated with 1st Battalion | | |
| | | |
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