beijing/taipei china warn wednesday interference damage one china principle would serious impact peace stability taiwan strait taiwan say maintain peace everyone interest u.s. president-elect donald trump say sunday unite state necessarily stick long-standing position taiwan part one china upset china already anger trump early telephone call taiwan president tsai ing-wen issue highly sensitive china consider taiwan renegade province beijing express serious concern trump remark fengshan spokesman china taiwan affairs office tell regular news conference taiwan issue china sovereignty territorial integrity uphold one china principle political basis develop china-u.s. relations cornerstone peace stability taiwan strait say basis interfere damage healthy stable development china-u.s. relations question peace stability taiwan strait seriously impact say taiwan policy-making mainland affairs council say peaceful relations mutual responsibility across side taiwan strait taiwan repeatedly stress maintain peace stability across taiwan strait throughout region best interest party say council spokesman chiu chui-cheng taiwan place equal weight development taiwan-u.s. relations cross-strait relations china deeply suspicious tsai rule democratic progressive party believe want push island formal independence red line beijing china repeatedly warn hard-won peace stability across narrow strait separate could affect move toward independence think facts tell people taiwan independence dead end say china never renounce use force bring taiwan control state media suggest trump remark military solution may need senior u.s. defense official say tuesday taiwan defense spend keep pace threat pose china increase taiwan annual defense spend hit percent gross domestic product recent years military political experts taiwan say minimum level taiwan defense spend factor external threats nation annual budget taiwan defense ministry spokesman chen chung-chi tell reuters premier say previously cabinet look use special budget meet defense need emergency situation beijing foreign ministry spokesman geng shuang say unite state need handle taiwan issue cautiously avoid tie china receive unnecessary interference so-called issue taiwan threaten think say many time oppose unite state taiwan form official contact military relations geng tell daily news brief china say damage 'one china principle would impact peace