Nuclear Issues

In this American Academy of Arts and Sciences study, Rebecca Davis Gibbons, Stephen Herzog, Wilfred Wan, and Doreen Horschig unpack the challenges to the global nuclear order posed by the Russian war against Ukraine. On February 24, 2022, Russia invaded nonnuclear-armed Ukraine and leveraged threats with its nuclear arsenal as a “shield” to deter third-party intervention. The well-publicized horrors on the ground in Ukraine are, unfortunately, not the only consequences of Russia’s full-scale invasion of its neighbor. The war is having unmistakable effects on how governments, scholars, and the public think about nuclear arms. Not only has Moscow reintroduced the world to the often-unsavory realities of nuclear deterrence, but its suspension of the New Strategic Arms Reduction Treaty (START) and deratification of the Comprehensive Nuclear-Test-Ban Treaty (CTBT) have been setbacks for arms control and disarmament. Meanwhile, vulnerable states around the globe may be further incentivized to develop nuclear weapons or seek protection from nuclear-armed patrons to avoid being invaded like Ukraine. Given these changing geopolitical circumstances, how might the Russian war on Ukraine affect the global nuclear order? The authors in this publication conclude that the United States and the broader international community must now more seriously engage with alternatives to traditional arms control, nonproliferation, and disarmament endeavors. Specifically, the authors discuss the increasing prominence of approaches such as the Treaty on the Prohibition of Nuclear Weapons (TPNW)—popularly known as the Nuclear Ban—and risk reduction measures. They assess whether these initiatives can have an impact in reducing nuclear dangers. Additionally, they examine temptations for states to pursue more forceful counterproliferation measures and describe the risks of doing so.

Joseph S. Nye writes that evaluating ethics in international relations is difficult, and Kissinger's legacy is particularly complex. Over his long tenure in government, he had many great successes, including with China and the Soviet Union and the Middle East. Kissinger also had major failures, including in how the Vietnam War ended. But on net, his legacy is positive. In a world haunted by the specter of nuclear war, his decisions made the international order more stable and safer.

2023 marked eighty years since the wartime adoption of the BRUSA Agreement between Great Britain and the United States. This 1943 document codified the growing relationship between U.S. and U.K. signals intelligence organizations and included policies governing the exchange of personnel and joint regulations for handling sensitive material. Security directives and protocols aligned operational processes between the democratic governments, setting new cooperative standards for nation-states battling authoritarian regimes.

Early after Russia’s invasion of Ukraine in February 2022, as Russian troops threatened Kyiv and Russian cruise missiles destroyed targets across the country, Oleksandr Kamyshin, Head of Ukrainian State Railways, received direct customer feedback that the bathrooms at one of his stations were filthy.

At a moment when arms control is deeply troubled and may be dying, two eminent scholars, Marc Trachtenberg and the late Robert Jervis, have taken a fresh look at the beginnings of strategic arms control fifty years after the signing in Moscow of the SALT I agreements in May of 1972. They do so from different vantage points, writes Steven E. Miller.

Calder Walton says both seek to topple the United States from atop world stage, with China's blend of money, influence, all-hands-on-deck approach posing the greater threat.

Calder Walton writes that Soviet espionage inside the Manhattan Project would change history. By the end of World War II, Stalin's spies had delivered the secrets of the atomic bomb to the Kremlin. This accelerated Moscow's bomb project. When the Soviets detonated their first atomic weapon in August 1949, it was a replica of the weapon built at Los Alamos and dropped by the Americans on Nagasaki.

What drove Yevgeny Prigozhin to lead his PMC Wagner troops on a “march for justice” across southern Russia, toward Moscow? Was it a mutiny meant to overthrow Vladimir Putin and install the ex-convict in the Kremlin? Or was the owner and political leader of Russia’s most powerful private army actually — as he assured his followers — trying to convince Putin to meet his demands, which included the firing of his arch-enemies and Russia’s top generals, Sergei Shoigu and Valery Gerasimov, over their poor conduct in the Ukraine war? And what made Prigozhin agree to abort the march toward Moscow, with Wagner’s reconnaissance teams reportedly spotted some 55miles south of the Russian capital, even though his demands had been left unmet? More importantly, has the rebellion weakened Putin, or has it made him stronger? And what’s next for Russia, Ukraine, and other countries whose national interests have been affected by this crisis? Finally, should we be thankful that the “march for justice” turned out the way it went? Despite having combed through hundreds of primary sources over the past several days, I still don’t have definitive answers to all of these key questions, but here’s how I would go about answering some of them if asked to do so, based on what was known as of June 29.

Stephen Walt critiques Henry Kissinger's professional life by dividing it into three parts: as an academic at Harvard; as national security advisor and secretary of state; and as an author, pundit, and sage, much of it conducted as the head of Kissinger Associates, the consulting firm he founded after leaving government.

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.