Nuclear Issues

553 Items

People practice combat skills in urban areas during a training course for national resistance of the Municipal Guard near Kyiv, Ukraine, on Jan. 19, 2024.

AP Photo/Evgeniy Maloletka

Journal Article - International Security

A “Nuclear Umbrella” for Ukraine? Precedents and Possibilities for Postwar European Security

| Winter 2023/24

Europe after the Russo-Ukrainian War must develop a new security structure to defend against any Russian aggression. The safest option is a non-offensive, confidence-building defense. This option includes proposals such as the “spider in the web” strategy and the “porcupine” strategy to provide for European security in a region threatened by Russian expansion—without relying on the threat of nuclear war. 

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Analysis & Opinions - Russia Matters

Mutiny in Russia: What Happened, What’s Next and What To Be Thankful For

| June 29, 2023

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.

People inspect the wreckage of buildings that were damaged by Saudi-led coalition airstrikes, in Sanaa, Yemen, Tuesday, Jan. 18, 2022.

AP Photo/Hani Mohammed

Analysis & Opinions - Belfer Center for Science and International Affairs, Harvard Kennedy School

Significance of the Iran-Saudi Arabia Agreement Brokered by China

Belfer Center experts on the U.S.-China relationship and Middle East issues shared thoughts on the significance of the unexpected Iran-Saudi Arabia agreement brokered by China. 

North Korean leader Kim Jong Un, second from right, inspects the preparation of the launch of a Hwasong-14 ICBM in North Korea on July 4, 2017.

AP Photo

Journal Article - Quarterly Journal: International Security

Defending the United States: Revisiting National Missile Defense against North Korea

| Winter 2021/22

The costly Ground-based Midcourse Defense system remains unproven and unreliable in deterring North Korea’s threat to use intercontinental ballistic missiles. An airborne boost-phase intercept system may offer an alternative defense against North Korea without threatening Russian or Chinese deterrents.

an alert from the Department of Homeland Security's Cybersecurity and Infrastructure Security Agency

AP/Jon Elswick

Journal Article - Foreign Affairs

The End of Cyber-Anarchy?

| January/February 2022

Joseph Nye argues that prudence results from the fear of creating unintended consequences in unpredictable systems and can develop into a norm of nonuse or limited use of certain weapons or a norm of limiting targets. Something like this happened with nuclear weapons when the superpowers came close to the brink of nuclear war in 1962, during the Cuban missile crisis. The Limited Test Ban Treaty followed a year later.