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.

Joseph Nye considers lessons from his own work on preventing the spread of nuclear technology in the 1970s.

Stephen Walt analyzes U.S. reliance on its toolbox of coercive instruments and stubborn adherence to unreachable objectives. He concludes that both are significant obstacles to a more effective U.S. foreign policy.

This year's G7 summit in Hiroshima sees nuclear disarmament and non-proliferation sitting high on the agenda, amid rising tensions between the nuclear states and an increasingly divided international order.  Six contributors offer their analyses, including the Belfer Center's Mayumi Fukushima.

Joseph Nye considers U.S. options for risk reductions as nuclear threats escalate and China-Taiwan tensions rise.

There seems to exist a general consensus on how to conceptualize cooperation in the field of international relations (IR). The authors argue that this impression is deceptive. In practice, scholars working on the causes of international cooperation have come to implicitly employ various understandings of what cooperation is. Yet, an explicit debate about the discipline's conceptual foundations never materialized, and whatever discussion occurred did so only latently and without much dialog across theoretical traditions. In this article, the authors develop an updated conceptual framework by exploring the nature of these differing understandings and situating them within broader theoretical conversations about the role of cooperation in IR.

Mina Pollmann explains that between China and North Korea, the logic for increased Japan-South Korea cooperation is clear. All that was lacking was political will. 

Stephen Walt explains why Putin understood that Ukraine's fate was more important to Russia than it was to the West.

For the United States, the dominant approach has been economic coercion. Despite applying stringent sanctions, the United States has been ineffective in convincing North Korea to give up its nuclear arsenal in return for a brighter economic and diplomatic future. The myriad U.S. sanctions have also failed to halt major progress in North Korea’s nuclear and missile programs. However, these setbacks have not caused the United States to change its strategy of economic coercion. On the contrary, the United States has considerably increased its use of this economic statecraft tool. In contrast, China has deepened its economic engagement with the North Korean regime since the late 2000s. Through the relationship between the Chinese Communist Party and its counterpart the Workers’ Party of Korea, China has cultivated and monetized political ties. Doing so has provided a powerful mechanism through which the Kim family regime—leaders of North Korea’s ruling and prosperous 1 percent—has shored up stability and thrived.

The Korean Missile Crisis of 2017 presented General Brooks with a unique opportunity to rethink deterrence and develop a dynamic playbook to change Kim Jong Un’s calculus. The result he called “micro deterrence signaling.”