Indeed,as the Soviet Union acquired vastly increased nuclear capabilities,the credibility and prudence of relying on massive retaliation gave way to our flexible response posture. 事實(shí)上,由于蘇聯(lián)已經(jīng)擁有了大量增加的核能力,我們依靠大規模報復戰略的可靠性和謹慎態(tài)度要讓位于我們的靈活反應戰略。