Nuclear Issues

Russia's 2022 invasion of Ukraine illuminated the long profound shadow of nuclear weapons over international security. Russia's nuclear threats have rightfully garnered significant attention because of the unfathomable lethality of nuclear weapons. However, the use of such weapons in Ukraine is only one way—albeit the gravest— that Russia could challenge the global nuclear order. Russia's influence extends deep into the very fabric of this order—a system to which it is inextricably bound by Moscow's position in cornerstone institutions such as the Nuclear Non-Proliferation Treaty (NPT) and the International Atomic Energy Agency (IAEA). From withdrawing from key treaties to stymieing resolutions critical of misconduct, Moscow has demonstrated its ability to challenge the legitimacy, relevance, and interpretations of numerous standards and principles espoused by the West.

Kari A. Bingen and Heather W. Williams write that if Russia plans to deploy nuclear weapons in space to target satellites, the threat is definitely serious—and the U.S. should act fast.

With concerns and uncertainties regarding Iran’s nuclear future persisting to this day, this paper seeks to review the TRR negotiations and the context in which they unfolded in order to capture some of the lessons of negotiating with Iran regarding its nuclear program, primarily from the viewpoint of senior U.S. officials involved at the time. The paper is also informed by the personal perspective of one of the authors (Poneman) who led the U.S. delegation in the 2009 Vienna talks, and who, prior to this publication, had not publicly elaborated on his experience. The other author (Nowrouzzadeh), who supported the TRR talks in an analytical capacity within the U.S. Department of Defense, also conducted an extensive interview with Poneman as part of their collaboration on this paper. By drawing on existing literature and recent interviews with several senior U.S. officials involved in the negotiations now that over ten years have passed, the authors seek to draw useful lessons from this episode that can assist policymakers in understanding Iran’s nuclear decision-making and in their continued efforts to shape the future trajectory of Iran’s nuclear program.

On August 6, 1945, the United States dropped an atomic bomb on Hiroshima, Japan, launching the nuclear age. On the 75th anniversary of that somber event, Belfer Center experts reflect on the event and its aftermath. 

Rebecca Davis Gibbons and Stephen Herzog provide an update on current efforts to eliminate nuclear weapons. 

The Bulletin of Atomic Scientists has published a document from the Pugwash Conference on Science and World Affairs concerning nuclear problems and tensions in the time of COVID-19. The document has been co-signed by a large number of Pugwash colleagues and personalities.

Chinese president Xi Jinping said in his address at the 2014 Nuclear Security Summit that, “we should place equal emphasis on development [of nuclear energy] and security, and develop nuclear energy on the premise of security.” He further emphasized that, “developing nuclear energy at the expense of security can neither be sustainable nor bring real development. Only by adopting credible steps and safeguards can we keep the risks under effective control and develop nuclear energy in a sustainable way."