The current wing was established on 1 April 2006 the unit has history dating back to February 1943.

184 Squadron RAF joining on 15 July 1944, moving to B.24 St Andre-De-L'Eure, B.70 Antwerp, B.80 Volkel, B.100 Goch, B.110 Achmer, B.150 Hustedt, B.164 Schleswig-Holstein, B.160 Kastrup and B.166 Flensburg before returning to England and RAF Dunsfold and being disbanded on 30 September 1945.

121 Wing was reformed on 1 November 1956 at RAF Gütersloh with No.

The wing reformed again one year later on 1 September 1958 still at Gutersloh with No.

121 Expeditionary Air Wing was formed at RAF Coningsby.

9 Squadron consisting of four Eurofighter Typhoons was deployed with 121 EAW at the Mihail Kogălniceanu Air Base in Romania as part of Operation Biloxi under the NATO Enhanced Air Policing mission.

[7] During the same deployment, airmen from German Air Force's Taktisches Luftwaffengeschwader 71 "Richthofen" were integrated into the British unit and conducted armed Quick Reaction Alert scramble and intercept training.