kristin holmes has the latest on the u.s.esponse which included a joint missle drill with south korea. >> reporter: u.s. condemned the launch on have what they believe is a international ballistics missle, secretary of state rex tillerson says test quote represents a newest lacing of the threat, and global axis required to stop a global threat. south korean military estimates missle traveled about 580 miles, u.s. saying it flew for 37 minutes. experts calculate the missle could have a max range of roughly 4,160 miles, long enough to reach alaska but not the rest of the united states. >> lot of it is just figuring out how to do hardening nearing and basically get everything to work at the same time which is not always easy to do. >> reporter: launch comes as north korea continues to pursue development of the nuclear war head. >> nuclear war head with ballistics missiles in the hands of jim jong un, it is a recipe for disaster. >> reporter: top officials from the state statement and white house held meetings, nikki haley, u.s.