▁by ▁Sam ▁Hamm ▁Category : W alt ▁Disney ▁Pictures ▁films ▁Category : American ▁films ▁Category : Fil ms ▁scored ▁by ▁Mark ▁I sh am <0x0A> </s> ▁Ray the on ▁Miss iles ▁& ▁Def ense ▁( R MD ) ▁is ▁one ▁of ▁four ▁business ▁segments ▁of ▁Ray the on ▁Techn ologies . ▁Head qu arter ed ▁in ▁T uc son , ▁Arizona , ▁its ▁president ▁is ▁Wes ▁Kre mer . ▁The ▁business ▁produces ▁a ▁broad ▁port folio ▁of ▁advanced ▁techn ologies , ▁including ▁air ▁and ▁miss ile ▁defense ▁systems , ▁precision ▁weapons , ▁rad ars , ▁and ▁command ▁and ▁control ▁systems . ▁ ▁History ▁The ▁business ▁is ▁a ▁combination ▁of ▁two ▁Ray the on ▁Company ▁legacy ▁business es , ▁Ray the on ▁Integr ated ▁Def ense ▁Systems ▁( ID S ) ▁and ▁Ray the on ▁Miss ile ▁Systems ▁( R MS ), ▁which ▁operated ▁a ▁plant ▁formerly ▁owned ▁by ▁the ▁Hugh es ▁A ircraft ▁Company . ▁David ▁Le ight on , ▁a ▁noted ▁historian , ▁documented ▁the ▁early ▁history ▁of ▁the ▁Hugh es ▁Miss ile ▁Plant ▁in ▁two ▁books . ▁His ▁mon ograph : ▁The ▁Fal con ' s ▁N est : ▁The ▁Hugh es ▁Miss ile ▁Plant ▁in ▁T uc son , ▁ 1 9 4 7 - 1 9 6 0 , ▁which ▁included ▁the ▁early ▁history ▁of ▁Hugh es ▁A ircraft ▁Co . ▁and , ▁his ▁reference ▁book : ▁The ▁History ▁of ▁the ▁Hugh es ▁Miss ile ▁Plant ▁in ▁T uc son , ▁ 1 9 4 7 – 1 9