th ▁Division ▁and ▁part ▁of ▁the ▁ 1 6 th ▁Arm ored ▁Caval ry ▁Squadron ; ▁the ▁other ▁included ▁the ▁ 1 0 th ▁Infantry ▁and ▁elements ▁of ▁the ▁ 6 th ▁Arm ored ▁Caval ry ▁Squadron , ▁in ▁ 1 2 ▁days ▁of ▁fighting ▁in ▁the ▁border ▁area , ▁these ▁two ▁mobile ▁task ▁forces ▁killed ▁ 8 5 0 ▁P AV N ▁soldiers , ▁captured ▁ 3 1 , ▁collected ▁over ▁ 1 0 0 ▁weapons , ▁and ▁suffered ▁fewer ▁than ▁ 3 0 0 ▁cas ual ties , ▁including ▁ 3 9 ▁killed . ▁ ▁On ▁ 9 ▁April ▁ 1 9 7 5 ▁the ▁P AV N ▁ 5 th ▁Division ▁moved ▁down ▁from ▁Sv ay ▁R ien g ▁Province ▁into ▁Long ▁An ▁Province ▁attack ing ▁near ▁T ân ▁An ▁with ▁its ▁ 2 7 5 th ▁Regiment . ▁The ▁Long ▁An ▁territorial s ▁fought ▁well ▁and ▁were ▁rein for ced ▁from ▁IV ▁Corps ▁by ▁the ▁ 1 2 th ▁Regiment . ▁Again st ▁light ▁losses , ▁the ▁ 2 nd ▁Battalion , ▁ 1 2 th ▁Regiment , ▁killed ▁over ▁ 1 0 0 ▁soldiers ▁of ▁the ▁ 2 7 5 th ▁Regiment , ▁forcing ▁its ▁commander ▁to ▁ask ▁for ▁rein for cement . ▁The ▁next ▁day , ▁the ▁P AV N ▁attacked ▁the ▁Can ▁D ot ▁air field ▁() ▁in ▁T ân ▁An ▁and , ▁after ▁closing ▁Highway ▁ 4 , ▁were ▁driven ▁off ▁with ▁heavy ▁losses ▁by ▁Long ▁An ▁territorial s . ▁In ▁two ▁subsequent ▁days ▁of