beirut syrian army say u.s. missile attack one airbases kill six people cause extensive damage add would respond continue campaign crush terrorism restore peace security syria statement army command describe attack friday act blatant aggression say make unite state partner islamic state ex-nusra front terrorist organizations unite state friday fire dozens cruise missiles airbase say deadly chemical weapons attack launch week escalation u.s. military role syria directly raise tension russia u.s. president donald trump say order strike america national security interest syrian army say attack undermine operation combat terrorism syrian arab army carry unite state try justify aggression pretext syrian arab army use chemical weapons khan sheikhoun without know reality happen add washington blame assad force attack kill score people rebel-held khan sheikhoun tuesday syrian government strongly deny responsibility blame deaths leak rebel chemical arm store say hit syrian air strike rebel say military position target area khan sheikhoun chemical weapons army say friday u.s. attack send wrong message terrorist organizations make go use chemical weapons future whenever face big losses battlefield syrian government describe arm group oppose terrorists syria say u.s. attack kill six cause extensive damage