9 5 7 ▁ ▁Dis cont in ued ▁and ▁in activ ated ▁on ▁ 1 ▁February ▁ 1 9 6 1 ▁ ▁Ass ign ments ▁▁ 3 3 d ▁Air ▁Division , ▁ 1 4 ▁February ▁ 1 9 5 7 ▁ ▁Oklahoma ▁City ▁Air ▁Def ense ▁S ector , ▁ 1 ▁January ▁ 1 9 6 0 ▁- ▁ 1 ▁February ▁ 1 9 6 1 ▁ ▁See ▁also ▁ ▁List ▁of ▁US AF ▁A eros pace ▁Def ense ▁Command ▁General ▁Sur ve ill ance ▁Rad ar ▁St ations ▁ ▁References ▁▁ ▁Cor nett , ▁Lloyd ▁H . ▁and ▁Johnson , ▁M ild red ▁W ., ▁A ▁Hand book ▁of ▁A eros pace ▁Def ense ▁Organ ization ▁▁ 1 9 4 6 ▁- ▁ 1 9 8 0 , ▁ ▁Office ▁of ▁History , ▁A eros pace ▁Def ense ▁Center , ▁Pet erson ▁A FB , ▁CO ▁( 1 9 8 0 ). ▁ ▁W ink ler , ▁David ▁F . ▁& ▁Web ster , ▁Jul ie ▁L ., ▁Search ing ▁the ▁Sk ies , ▁The ▁Leg acy ▁of ▁the ▁United ▁States ▁Cold ▁War ▁Def ense ▁Rad ar ▁Program , ▁ ▁US ▁Army ▁Const ruction ▁Engineering ▁Research ▁Labor ator ies , ▁Champ aign , ▁IL ▁( 1 9 9 7 ). ▁ ▁Information ▁for ▁K ille en ▁A FS , ▁T X ▁ ▁Category : Rad ar ▁stations ▁of ▁the ▁United ▁States ▁Air ▁Force ▁Category : A eros pace ▁Def ense ▁Command ▁military ▁install ations ▁Category : 1 9 5 7 ▁establish