The north s 1998 ballistic missile test over japan did more than almost any single event to stimulate the u . s . desire for missile defense and sparked a sea change in japanese thinking about its national security interests ?北韩1998年进行飞越日本的弹道导弹试射，几乎比任何事件都更加激起美国实施导弹防御的决心，并且导致日本对国家战略安全思维的巨大转变；
