seoul north korean leader kim jong un guide launch hwasong-12 intermediate-range ballistic missile tuesday drill counter joint military exercise south korean u.s. militaries north official kcna news agency say wednesday current ballistic rocket launch drill like real war first step military operation kpa pacific meaningful prelude contain guam kcna quote kim say kpa stand korean people army north military north korea threaten fire four hwasong-12 missiles sea near u.s. pacific territory guam early month u.s. president donald trump say north would face fire fury threaten unite state north korea say launch hwasong-12 rocket counter south korea-u.s. drill kcna