With the departure of the 49 TFW, the 7149th Air Base Group was activated to serve as a caretaker unit for a number of support organizations that remained behind after the departure of the 49 TFW. Although it did not have any assigned aircraft, the 7149 TFW would have served as a nucleus on which to build if the 49 TFW had been ordered to return to Europe to bolster NATO air forces. As part of "REFORGER" (return of forces to Germany) US Army, USAF units returned as "Crested Cap" including the entire 49th TFS in early 1969 and in 1970 and 1971 from Holloman AFB, NM. After 1969 the two 36th TFW assigned squadrons, 23rd TFS in F-4Cs and 39th TEWS in EB-66E and 2 EB-66C's were back in the runway alert facility, previously used by 49 TFW F-105s and F-4s, reactivated in Dec 1969. 23rd TFS simply moved to next Eifel Mtn hill top into old 49th TFW squadron buildings and 39th TEWS began assembling in April with aircraft from 4417th CCTS and personnel from both Shaw AFB, SC and returning SEA EB-66 combat crewmembers many of whom the 363rd TRW Combat Crew Instructors had themselves trained the previous few years.