N ▁activity . ▁On ▁ 1 3 ▁May ▁following ▁a ▁further ▁B - 5 2 ▁strike ▁ 1 5   km ▁north west ▁of ▁ Đ ứ c ▁C ơ ▁Camp , ▁the ▁ 1 / 8 th ▁Infantry ▁went ▁in ▁to ▁search ▁the ▁area ▁ending ▁at ▁Land ing ▁Zone ▁Jackson ▁H ole ▁( ), ▁the ▁ 1 st ▁Brigade ▁base ▁on ▁Highway ▁ 1 4 B , ▁with ▁the ▁ 3 rd ▁Battalion , ▁ 1 2 th ▁Infantry ▁Regiment ▁moving ▁parallel ▁to ▁it . ▁On ▁the ▁morning ▁of ▁ 1 8 ▁May , ▁Company ▁B ▁ 1 / 8 th ▁Infantry ▁pat rolling ▁in ▁the ▁dens ely ▁j ung led ▁I a ▁T char ▁Valley ▁near ▁the ▁Camb od ian ▁border ▁saw ▁and ▁purs ued ▁a ▁l one ▁P AV N ▁soldier . ▁The ▁purs uit ▁led ▁the ▁Company ▁into ▁an ▁amb ush ▁by ▁a ▁large ▁P AV N ▁force ▁and ▁they ▁formed ▁a ▁def ensive ▁per imeter ▁while ▁calling ▁in ▁air ▁and ▁art illery ▁support , ▁however ▁the ▁thick ▁j ung le ▁can opy ▁prevent ed ▁aer ial ▁observation ▁and ▁absor bed ▁much ▁of ▁the ▁force ▁of ▁the ▁incoming ▁fire . ▁The ▁Battalion ▁commander ▁sent ▁Company ▁A ▁to ▁assist ▁but ▁the ▁thick ▁j ung le ▁delayed ▁their ▁progress . ▁Company ▁B ' s ▁ 4 th ▁pl ato on ▁radio ed ▁that ▁they ▁were ▁being ▁over run ▁and ▁called ▁in ▁art illery ▁fire ▁directly ▁on ▁their ▁position . ▁Company ▁A ▁was ▁then ▁moved ▁by ▁hel ic opter ▁to ▁Company ▁B