Reports & Papers

In trying to prevent adversaries from acquiring new military capabilities, countries often employ strategies of arms denial; e.g., “unilateral diplomacy,” supply chain interdiction, covert sabotage, and targeted military strikes. Using a game-theoretical model of weapons acquisition and denial, the authors posit that the prevalence of this approach gives rise to strategic effects that affect all players’ behavior.

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.”

In the lead-up to the nuclear security summit, Advancing Nuclear Security: Evaluating Progress and Setting New Goals outlines what was accomplished in a four-year effort launched in 2009 to secure nuclear material around the globe—and what remains to be done. The effort made significant progress, but some weapons-usable nuclear materials still remain “dangerously vulnerable." The authors highlight the continuing danger of nuclear and radiological terrorism and call for urgent action.

In the Foreword to this paper by Andrei Kokoshin, Belfer Center Director Graham Allison writes: "The global nuclear order is reaching a tipping point. Several trends are advancing along crooked paths, each undermining this order. These trends include North Korea’s expanding nuclear weapons program, Iran’s continuing nuclear ambitions, Pakistan’s increasing instability, growing doubts about the sustainability of the nonproliferation regime in general, and terrorist groups’ enduring aspirations to acquire nuclear weapons. Andrei Kokoshin, deputy of the State Duma and former secretary of Russia’s Security Council, analyzes these challenges that threaten to cause the nuclear order to collapse in the following paper."

The following study focuses on the threat of nuclear terrorism facing Israel. It begins with an overview of the nature of the threat, before turning to the potential perpetrators of nuclear terrorism against Israel, possible delivery mechanisms and targets, and the specific scenarios under which the threat to Israel might materialize. The study then presents possible policy options for Israel to deal with the threat, both unilaterally and in conjunction with the United States.

A paper by the National Security Advisory Group

The public reconciliation of Presidents Bush and Putin in St. Petersburg and
at the G-8 Summit in Evian has fostered the impression that all is well in the
U.S.-Russian relationship. This is a dangerous misimpression. The U.S.-
Russian dispute over Iraq exposed conflicts in the U.S.-Russian relationship
and even cracks in its foundation that must be addressed to advance vital
American interests.

Leaders at the 2010 nuclear security summit agreed on the goal of securing all vulnerable nuclear material in four years, but the factors that drive and/or constrain nuclear security changes are not well understood. Matthew Bunn and Eben Harrell surveyed nuclear security professionals in countries with nuclear weapons, HEU, or separated plutonium to explore this issue. This paper describes the survey, its results, and implications for strengthening global nuclear security.