Nuclear Issues

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. 

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 provides A realist POV on the war in Ukraine, competition with China, COVID, and more in the second part of an interview with Foreign Policy Editor-in-Chief Ravi Agrawal.

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.

Christopher Ford, John Harvey, Franklin Miller, Keith Payne, and Bradley Roberts respond to Scott Sagan and Allen Weiner’s spring 2021 article, “The Rule of Law and the Role of Strategy in U.S. Nuclear Doctrine.”

To date, the U.S. government has not declared that it no longer reserves a purported right to target civilians by way of reprisal, in response to an unlawful attack against U.S. or allied civilians. As we have argued elsewhere, and as Adil Haque recently called on the Biden administration to do, it is time for the United States to acknowledge that customary international law today prohibits targeting civilians in reprisal for an adversary’s violations of the law of war.

When properly applied, the key principles of the law of armed conflict have a profound impact on U.S. nuclear doctrine. Specifically, it would be unlawful for the United States to intentionally target civilians, even in reprisal for a strike against U.S. or allied civilians.

Stephan Walt writes that Trump's foreign-policy instincts might be more sound—but he has forfeited the chance to lead.

Why would a state that lacks nuclear weapons choose to fight a state that has them? In this roundtable, four scholars evaluate Paul Avey's explanation for this phenomenon.

The 2018 National Defense Strategy (NDS) is predicated on a single organizing principle: America’s military pre-eminence is rapidly eroding. This is not a new concept. For years, experts have warned that the economic and technological advancements of U.S. adversaries, coupled with the 2008 financial crisis and America’s focus on peripheral conflicts, have caused a decline in America’s military dominance. 

In this context, the advances of near-peer competitors such as China and Russia have created plausible “theories of victory” in potential conflicts across Eastern Europe and East Asia. Competitors’ unaddressed improvements in strategic innovation, economic investment, and dual-use technology increases the risk of conflict and strains the U.S. alliance system. It is urgent that the United States reestablish and maintain credible deterrents against these near-peer competitors. After decades of focusing on post-Cold War ‘shaping’ operations, the American military needs to reinvigorate for full spectrum great power competition.

This report is intended as a blueprint on how to begin that process from graduate students at the Belfer Center for Science and International Affairs at Harvard University. Contained inside are 12 memorandums. Each provides a high-level overview and specific recommendations on a key issue of American defense policy.