manila philippine commandos law enforcers practice hostage negotiations storm commercial jet free american passengers major joint exercise u.s. counterparts boost country counter-terrorism readiness philippine defense ministry tuesday say 1,200 uniform civilian filipino american personnel take part exercise tempest wind last week former u.s. air force base outside manila hawaii filipino civilian participants tell drill simulation late exercise two longtime defense treaty ally critical time philippines face big internal security crisis years supporters islamic state try gain foothold south defence department spokesman arsenio andolong say civilian participants tell plane sydney bind honolulu seize mid-air eight islamic state militants make emergency land clark north manila say hijack make appear realistic officials u.s. state department federal bureau investigation start provide technical intelligence hijackers flight manifest philippine authorities many participants unaware drill last minute think hijack real andolong tell reporters say operation execute filipino force guide u.s. information technical advice drill feature negotiation phase philippine authorities talk around clock hijackers nearly 72 hours commandos send neutralize eight hijackers scenario 182 passengers kill drill give side valuable lessons deal crisis andolong say many operational tactical gap discover even u.s. find protocols work way expect militaries countries decades hold train exercise trans-national crime disaster response maritime security washington provide 700 million security aid philippines past 17 years recently unite state provide technical support philippine grind air force battle four months retake southern marawi city islamic state loyalists joint exercise however support philippine president rodrigo duterte make clear disdain rotate u.s. troop presence country frequent tirades former colonial power defence secretary delfin lorenzana say hijack exercise first kind involve multiple level security civilian authorities drill design provide realistic scenarios terrorism demand high-level engagements responses tactical level say commandos storm plane philippines-u.s. hijack simulation