▁A TC ▁facilities ▁as ▁part ▁of ▁the ▁transfer ▁to ▁Str ateg ic ▁Air ▁Command ▁( S AC ). ▁The ▁prov is ional ▁ 4 3 2 0 th ▁Str ateg ic ▁Miss ile ▁Wing ▁was ▁established ▁that ▁date ▁with ▁responsibility ▁for ▁ 2 4 ▁Atlas ▁miss ile ▁sites ▁under ▁S AC . ▁Although ▁not ▁the ▁first ▁designated ▁miss ile ▁wing , ▁Warren ▁became ▁the ▁first ▁fully ▁oper ational ▁IC B M ▁base ▁in ▁the ▁Air ▁Force . ▁▁ 7 0 6 th / 3 8 9 th ▁Str ateg ic ▁Miss ile ▁Wing ▁Atlas ▁D ▁and ▁E ▁miss iles , ▁ 1 9 5 8 – 1 9 6 5 ▁▁ ▁The ▁project ▁design ▁for ▁the ▁above - ground ▁SM - 6 5 D ▁Atlas ▁IC B M ▁launch ▁and ▁control ▁facilities ▁at ▁" Site ▁A " ▁was ▁to ▁be ▁completed ▁by ▁mid - May ▁ 1 9 5 8 ▁and ▁construction ▁finished ▁in ▁November ▁ 1 9 5 9 . ▁Design ▁revis ions ▁delayed ▁the ▁project ▁several ▁months . ▁Const ruction ▁began ▁at ▁a ▁location ▁ ▁north west ▁of ▁Che y enne ▁in ▁late ▁ 1 9 5 8 ▁for ▁the ▁facilities ▁of ▁the ▁recently ▁activ ated ▁ 7 0 6 th ▁Str ateg ic ▁Miss ile ▁Wing , ▁which ▁would ▁control ▁the ▁IC B M s . ▁On ▁ 1 5 ▁September ▁ 1 9 5 9 , ▁the ▁first ▁Atlas ▁D ▁miss ile ▁to ▁deploy ▁away ▁from ▁V anden berg ▁A FB , ▁California , ▁went ▁to ▁the ▁ 5