tokyo escalate threat north korea nuclear program show clear need new approach u.s. secretary state rex tillerson say thursday although say trump administration plan first time tillerson speak joint news conference tokyo talk japanese foreign minister fumio kishida take question media since take office early february two decades diplomatic efforts include u.s. aid north korea fail achieve goal denuclearizing pyongyang say tillerson former oil executive prior diplomatic experience start first trip asia secretary state 20 years fail approach tillerson say include period unite state provide 1.35 billion assistance north korea encouragement take different pathway face ever-escalating threat clear different approach require part purpose visit region exchange view new approach say japanese foreign ministry official say u.s. officials discuss potential new approach regard north korea decline elaborate tillerson press chinese rein north korea nuclear missile program expect tell unite state intend increase missile defense region despite beijing strong opposition u.s. official tell reuters washington advance u.s. anti-missile system instal south korea official say trump administration want discuss similar improvements japan tillerson visit south korea china late week tillerson also likely raise prospect impose secondary sanction chinese bank firm business north korea official say speak condition anonymity among options consider full review north korea policy expect complete late march early april official said.state department spokesman mark toner say wednesday tillerson substantive hard talk next step deal north korea visit likely produce immediate specific response beijing chinese foreign ministry spokeswoman hua chunying repeat foreign minister wang yi proposal last week north korea stop nuclear missile test south korea unite state stop joint military drill seek talk instead welcome party include unite state come proposals hua tell daily news brief long proposals conducive ameliorate present tense situation korean peninsula beneficial maintain regional peace stability ... china open attitude tillerson make clear expect china north korea sole major ally discussions china action believe might consider take would helpful bring north korea different attitude future need nuclear weapons say tillerson comment japan eagerly watch international observers indications mean trump administration foreign policy japan seek clue washington policies north korea china increase military economic clout hop steer clear trade row tillerson also hold talk japanese prime minister shinzo abe dinner kishida u.s. president donald trump make hallmark campaign call ally include japan pay host u.s. force elements american protection tillerson issue far gentle message conference underscore long-standing u.s.-japanese alliance security environment region challenge unite state commit strengthen role welcome increase japanese commitment roles responsibilities alliance say tillerson second member trump cabinet visit japan defense secretary jim mattis visit last month vice president mike pence due april underscore u.s. concern surround north korea missile nuclear program abe first foreign leader meet trump november election win north korea last week launch four ballistic missiles late series develop nuclear-tipped missiles reach unite state defiance u.n. security council resolutions sanction washington say options include military table review policies toward north korea final months obama administration u.s. officials warn would blacklist chinese company bank illicit business north korea beijing fail enforce u.n. sanction pyongyang unite state begin deploy terminal high altitude area defense missile defense system south korea move china object strongly see system radar threat security pak myong ho north korean embassy official speak beijing thursday say deployment destroy balance northeast asia pacific region radar aim us pak say also aim china russia china assertiveness east china sea territorial row japan south china sea dispute philippines several southeast asian nations also agenda tillerson urge 'new approach north korea give detail