366th Operations Group The 366th Operations Group ( 366 OG ) is the flying component of the 366th Fighter Wing , assigned to the United States Air Force Air Combat Command . The group is stationed at Mountain Home Air Force Base , Idaho . Overview . The 366th Operations Group is one of the most diverse operations groups in all of Air Combat Command . The group is responsible for planning , operations , intelligence , weapons training , and airfield services for seven squadrons assigned to the 366th Fighter Wing . It develops flying airspace and range schedules for more than 20 , 000 flying hours and 13 , 000 sorties annually . It also maintains combat readiness for short - notice worldwide Air Expeditionary Force and contingency operations . Assigned Units . The 366th Operations Group ( Tail Code : MO ) comprises seven squadrons : the 390th Electronic Combat Squadron , 389th , 391st and 428th Fighter Squadrons , 366th Operations Support Squadron , 726th Air Control Squadron and 266th Range Squadron . History . World War II . Group trained in P - 47s in preparation for overseas duty . Entered combat from England in March 1944 with fighter sweeps over the Bayeaux - St . Aubin area of France . Participated in attacks on targets in France , Belgium , and Germany in preparation for the invasion of the Continent . Flew fighter sweeps over Normandy on 6 June 1944 ; targets included motor vehicle convoys , buildings , and gun emplacements . Moved to the Continent soon after D - Day . Received a DUC for three missions flown in support of ground forces on 11 July 1944 : on a mission to destroy pillboxes near St . Lo , Normandy , France , discovered and destroyed portion of an enemy tank column unknown to Allied infantry ; after rearming , the group returned to attack the tank column and prevented the enemy from accomplishing their mission . During the third mission , despite heavy rainfall , successfully attacked another Panzer battalion from minimum altitude . Group also supported Allied ground forces during the breakthrough at St . Lo in July 1944 . In August 1944 attacked tanks , trucks , and troop concentrations as enemy retreated ; provided armed reconnaissance for advancing Allied armored columns . During September 1944 , attacked flak positions near Eindhoven during airborne landing in Holland ; bombed enemy communications and transportation lines in western Germany . Flew armed reconnaissance missions over Battle of the Bulge during December 1944 – January 1945 ; group flew 600 sorties from 17 – 27 December 1944 that resulted in the destruction of 43 enemy aircraft , 37 tanks , 328 trucks , 18 armored vehicles , four gun positions , and 15 half - tracks . Provided cover for VII Corps in January 1945 and during action destroyed over 1 , 000 enemy vehicles . Flew missions against enemy transportation systems including motor vehicles , bridges , trains , railway bridges , and marshalling yards during February and March 1945 . Moved to Germany in April 1945 . On group ' s last mission of the war , attacked harbors at Kiel and Flensbury on 3 May 1945 . Served in occupational status in Germany from May 1945 until group inactivated . Cold War . The group was reactivated on 1 January 1953 at Alexandria Air Force Base , Louisiana . It replaced the Federalized Iowa Air National Guard 132d Fighter Bomber Group which was being returned to state control after a twenty - one month period of activation as a result of the Korean War . The group was composed of the 389th , 390th , and 319st Fighter Squadrons . Initially using the former ANG F - 51D Mustang s , the 366th received F - 86F Sabre s which were returned from Korea in the summer of 1953 , then received new swept - wing F - 84F Thunderstreak s in early 1954 . On 18 March 1954 , the KB - 29 equipped 420th Air Refueling Squadron was attached to the Wing to provide air refueling for the Thunderstreaks . The B - 29s were later replaced with KB - 50 aerial tankers . The group ' s squadrons became first TAC units to perform six - month TDY rotations with NATO at Aviano AB , Italy , with rotations continuing until group inactivated in September 1957 when parent wing adopted Tri - Deputate organization and assigned operational squadrons directly to the wing . Modern era . Upon activation in 1992 , assumed control of 366th Wing ' s operational units . Deployed assets to Southwest Asia throughout the 1990s support to Operation SOUTHERN WATCH ; elements participated in Operations PROVIDE COMFORT I and PROVIDE COMFORT II in Turkey . Group ' s squadrons directly participated in Operations ENDURING FREEDOM and NOBLE EAGLE following the 11 September 2001 terrorist attacks . After the 9 / 11 terrorist attacks , the consolidation of the Air Force ' s KC - 135 and B - 1 force led to the reallocation of the unit ' s bombers and tankers to McConnell AFB , Kansas , and Ellsworth AFB , S . D . The group was also home to F - 16CJ Fighter Falcon aircraft from 1992 to March 2007 . The F - 16CJs left the base in another effort to consolidate from multiple airframes to one at Air Force installations across the country .