By embracing the long-term goal of a non-nuclear world (though perhaps not in his lifetime), Obama reiterated America’s long-standing commitment, written into Article 6 of the Non-Proliferation Treaty, to reduce the role of nuclear weapons. Moreover, he followed up by negotiating with Russia a successor to the Strategic Arms Reduction Treaty by the end of this year, and has moved the non-proliferation issue to the top of the agenda at the UN and the G-20.
奥巴马第三个重要贡献就在于，重新构造了核不扩散问题，很多专家都认为，这个问题在布什政府的后期已经相当危险。在重新回归无核化世界的战略愿景之后（虽然恐怕不是在他有生之年），奥巴马重申了美国长期承诺。即核武器不扩散条约六点，减少核武器的比重。更有甚者，他还和俄罗斯在今年年底达成协议，将减少战略武器的续约进一步落实，并将无核化议题提交联合国和20国集团讨论。