seoul former u.s. presidential candidate hillary clinton say wednesday cavalier threats start war korean peninsula dangerous short-sighted urge unite state get party negotiate table clinton also call china take outfront role enforce sanction north korea aim curb missile nuclear development need us bellicose aggressive north korea clinton tell world knowledge forum south korean capital seoul stress need pressure north korea diplomacy bring pyongyang talk tension pyongyang washington soar follow series weapons test north korea string increasingly bellicose exchange u.s. president donald trump north korean leader kim jong un pick fight kim jong un put smile face clinton say without mention trump name clinton also indirectly refer trump social media comment north korea say insult twitter benefit north korea think benefit unite state war word see trump call north korean leader little rocket man suicide mission vow destroy country threaten unite state ally turn north call trump mentally derange mad dog talk adversaries long urge china particular washington ally japan reluctant pyongyang continue pursue goal develop nuclear-tipped missile hit unite state tuesday deputy secretary state john j. sullivan say unite state rule eventual possibility direct talk north korea situation korean peninsula touch-and-go point nuclear war may break moment north korea deputy u.n. ambassador kim ryong tell u.n. general assembly committee monday seoul vice foreign minister say wednesday south korea consider levy sanction north although decision make yet clinton former u.s. secretary state say washington ally increasingly express concern reliability unite state advise washington avoid become distract north korean threats forcefully patient possible regard china role rein north korea clinton say beijing would good try tighten absolutely enforce sanction north korea north korea relationship main ally trade partner china strain rapid pursuit weapons program many pyongyang recent test coincide major chinese events fear north korea would conduct another test coincide start china five-yearly party congress wednesday instead pyongyang send beijing congratulatory message central committee north rule workers party korea say china make great progress accomplish cause build socialism chinese characteristics guidance communist party china greatly please party central committee say message carry official kcna news agency add sincerely wish china congress satisfactory success chinese president xi jinping mention north korea three-hour-long address open key communist party congress clinton say retaliatory action china deployment u.s. anti-missile system south korea target latter firm business china would unnecessary beijing do good job rein north china say powerful radar terminal high altitude area defence thaad system could use pierce territory take aim south korea businesses south korea unite state repeatedly tell china thaad aim defend north korea missile threats chinese ways clinton say less could tighten economic pressure north korea time discount real threat south korea citizens face hillary clinton say u.s. threats war north korea 'dangerous short-sighted