核武器的出现给人类的生存与发展带来了巨大的压力 ,人们生活在核战争的阴影之下。美国为了自身的军事、安全等利益 ,维护其大国地位 ,经过多年的努力 ,形成了核不扩散政策。《核不扩散条约》的签定对于维护世界和平有积极的作用 ,当然 ,也不可避免地造成了大国的核垄断 The emergence of nuclear weapons has brought tremendous pressure to the survival and development of mankind. People live in the shadow of nuclear war. For its own military and security interests, the United States has maintained its position as a major power. After many years of hard work, the United States has formed a nuclear non-proliferation policy. The signing of the “Nuclear Non-Proliferation Treaty” has a positive role in safeguarding world peace and, of course, inevitably, has caused the nuclear monopoly of a big nation