<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.marekani na mshirika wake korea kusini wanasema uamuzi wa kutuma wanajeshi, ulikubalika tokea mwaka jana, na una lengo la kuzuia kitisho cha makombora ya korea kaskazini iliyo na silaha za kinyuklia.  <response>: the u.s. and ally south korea say its deployment, agreed last year, is intended to guard against missile threats from the nuclear-armed north. 