7 4 ▁▁ ▁The ▁departure ▁of ▁the ▁Atlas ▁squad rons ▁did ▁not ▁mark ▁the ▁end ▁of ▁F . E . ▁Warren ' s ▁role ▁in ▁the ▁IC B M ▁program . ▁On ▁ 1 5 ▁October ▁ 1 9 6 2 , ▁Mor r ison - K n ud sen ▁and ▁Associ ates ▁won ▁the ▁contract ▁to ▁construct ▁ 2 0 0 ▁L GM - 3 0 A ▁Min ut eman ▁I ▁miss ile ▁sil os ▁over ▁an ▁ ▁area ▁of ▁Wy oming , ▁Neb r aska , ▁and ▁Colorado , ▁located ▁north ▁and ▁east ▁of ▁the ▁base . ▁On ▁ 1 ▁July ▁ 1 9 6 3 , ▁the ▁Air ▁Force ▁activ ated ▁the ▁ 9 0 th ▁Str ateg ic ▁Miss ile ▁Wing . ▁Over ▁the ▁next ▁year , ▁four ▁component ▁strateg ic ▁miss ile ▁squad rons ▁activ ated ▁with ▁the ▁ 4 0 0 th ▁S MS ▁became ▁the ▁last ▁Min ut eman ▁I ▁" B " ▁unit ▁to ▁stand ▁up ▁on ▁ 1 ▁July ▁ 1 9 6 4 . ▁In ▁November ▁ 1 9 7 2 , ▁S AC ▁initi ated ▁the ▁" Min ut eman ▁Integr ated ▁Im prov ement ▁Program ". ▁The ▁program ▁ent a iled ▁sil o ▁hard ening ▁and ▁upgrad ing ▁command ▁data ▁buff ers ▁in ▁the ▁launch er ▁control ▁facilities , ▁which ▁allowed ▁for ▁quick er ▁miss ile ▁re - target ing ▁and ▁a ▁new ▁version ▁of ▁the ▁Min ut eman ▁miss iles . ▁After ▁conversion ▁to ▁the ▁L GM - 3 0