washington japan ambassador unite state weigh u.s. presidential election debate friday argue america first stance republican candidate donald trump stress importance u.s.-japan alliance without mention trump name envoy kenichiro sasae tell washington forum japan come unexpectedly election debate show nothing could take grant term long-standing alliance presidential elections arguments whether unite state go isolationist stance sasae say want see kind unite state want see unite state strong come strong robust position really think unite state say trump presumptive republican nominee nov. presidential election portray japan long-time treaty ally unite state free-rider security suggest tokyo might need nuclear weapons ease u.s. financial commitment defense anathema country ever attack atomic bomb japan minister regional revitalization shigeru ishiba say comment one candidate say would name cause lot concern japan ishiba tell forum japan south korea choose develop nuclear weapons regional stability would suffer add think add u.s. interest matter become president understand essence alliance accurately grasp international environment place would lead sure proper policies implement add sasae say understand debate make america strong add question whether could strong without proper role around world important undermine ... one value u.s.-japan alliance two geopolitical implications emerge resurgent power world three capability strength unite state trump outline clear america first policy speech late last month vow elect president u.s. ally europe asia would fend pay u.s. defense umbrella japanese prime minister shinzo abe say thursday japan u.s. alliance foundation asian peace prosperity tokyo hop able work whoever become u.s. president japan ambassador take veil swipe trump 's 'america first stance