Bydeclaring“Fromthisdayforward,anewvisionwillgovernourland.Fromthisdayforward,it’sgoingtobeonlyAmericafirst”1andmaking“AmericaFirst”thecoreprincipleforgovernanceandforeignpolicy,theUSPresidentDonaldTrumphasabandonedthe“globalism”cherishedbysuccessiveAmericanadministrationsinthepost-warera.Althoughthe“TrumpDoctrine”isnotyetclearlydefinedasanoveralldiplomaticstrategy,“AmericaFirst”hasalreadyconstitutedthemostcriticalelementinthisstrategy,representingachangeindirectionfortheUSforeignpolicy.ThedistinctiveprioritizationofTrump’sforeignpolicywillhaveatremendousimpactontheUSitselfandonitsexternalenvironmentwitheffectstoberevealedastimegoesby.
