Research

The last seven decades without war among the great powers – what historians describe as “the long peace” – is a remarkable achievement. “This is a rare and unusual fact if you look at the last few thousand years of history,” said Graham Allison, director of the Belfer Center and moderator of the IDEASpHERE panel “Winning the Peace.” “Furthermore, it is no accident. Wise choices by statesmen have contributed to ‘the long peace,’ which has allowed many generations to live their lives.”

This paper studies under what conditions the U.S. can coerce its allies to forgo nuclear weapons. Specifically, why did Taiwan and South Korea give up their nuclear pursuits under American duress, while Israel and Pakistan attained a nuclear capability?

Despite substantial progress in improving nuclear security in recent years, there is more to be done.  The threats of nuclear theft and terrorism remain very real.  This paper recommends learning from the much stronger national and international efforts in nuclear safety, and in particular taking steps to build international understanding of the threat; establish effective performance objectives; assure performance; train and certify needed personnel; build security culture and exchange best practices; reduce the number of sites that need to be protected; and strengthen the international framework and continue the dialogue once leaders are no longer meeting regularly at the summit level.

"A rigorous assessment should consider the strengths and weaknesses of the United States' putative competitors on the global scene as well as the enduring strengths and sources of resilience that have enabled America to extend its primacy and maintain a stabilizing, global hegemonic role against all expectations. There is a need for a framework to inform how US policymakers might think about the problem of developing strategies and policies to extend that role yet again, since it is at least an arguable proposition that rather than a multipolar world, the global system, after the current Great Recession passes, will continue to be unipolar but with some additional challenges for US leadership."