▁Air ▁Station , ▁Lab r ador , ▁ 1 ▁October ▁ 1 9 5 3 ▁ ▁In activ ated ▁ 3 0 ▁June ▁ 1 9 7 1 ▁ ▁Ass ign ments : ▁▁ 4 7 0 7 th ▁Air ▁Def ense ▁Wing , ▁ 2 5 ▁May ▁ 1 9 5 3 ▁▁ 6 4 th ▁Air ▁Division ▁( NE AC ), ▁ 1 ▁October ▁ 1 9 5 3 ▁▁ 4 7 3 2 d ▁Air ▁Def ense ▁Group ▁( AD C ), ▁ 1 ▁April ▁ 1 9 5 7 ▁ ▁Go ose ▁Air ▁Def ense ▁S ector , ▁ 1 ▁April ▁ 1 9 6 0 ▁▁ 3 7 th ▁Air ▁Division , ▁ 1 ▁April ▁ 1 9 6 6 ▁▁ 2 1 st ▁Air ▁Division , ▁ 3 1 ▁March ▁ 1 9 7 0 ▁– ▁ 3 0 ▁June ▁ 1 9 7 1 ▁ ▁See ▁also ▁▁ ▁S agle k ▁Airport ▁ ▁Dist ant ▁Early ▁Warning ▁Line ▁ ▁P inet ree ▁Line ▁ ▁List ▁of ▁US AF ▁A eros pace ▁Def ense ▁Command ▁General ▁Sur ve ill ance ▁Rad ar ▁St ations ▁ ▁References ▁and ▁notes ▁▁▁ ▁A ▁Hand book ▁of ▁A eros pace ▁Def ense ▁Organ ization ▁ 1 9 4 6 ▁- ▁ 1 9 8 0 , ▁ ▁by ▁Lloyd ▁H . ▁Cor nett ▁and ▁M ild red ▁W . ▁Johnson , ▁Office ▁of ▁History , ▁A eros pace ▁Def ense ▁Center , ▁Pet erson ▁Air ▁Force ▁Base , ▁Colorado ▁ ▁W