International Security & Defense

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.

Calder Walton recounts how Russia and China are using their intelligence agencies to reverse the outcome of the Cold War

Stephen Walt argues that when states are in trouble and worried that they might suffer a setback, they toss their principles aside and do what they think it takes to win.

This essay explores how scholarly articles influence national security policy. It focuses on articles in the journal International Security, which has published a higher proportion of policy-relevant articles than any other scholarly journal of international relations and foreign policy. Journal articles rarely have an immediate impact on foreign policy. They may, however, have important long-term and general effects. The articles that future policymakers read when they are students can shape their worldview and approach to national security policy.

Gabrielle Armstrong-Scott and Jim Waldo argue that machine learning tools and a better definition of "terrorist and extremist content" could help make the Web a safer place.

From July 11-12, 2023, NATO leaders gathered in Vilnius, Lithuania for one of the most significant NATO summits in history. This timely brief by Eric Rosenbach, Grace Jones, and Olivia Leiwant serves as a background piece on Ukraine’s history with NATO, potential future pathways for accession, and the operational impact Ukraine’s NATO membership could have on the alliance. 

By looking beyond solely Iran’s security motivations, this paper by Sahar Nowrouzzadeh seeks to inform more holistic negotiation strategies that can potentially influence Iran’s nuclear decision-making in a manner more favorable to U.S. interests.

The American public is increasingly losing trust and confidence in the military and has a lower propensity to serve. This has significant implications for the safety and security of the nation. To overcome these issues, the Army must develop a long-term strategy to create a positive organizational culture. This requires senior leaders to focus on educating and training junior Army leaders on how to improve the organizational climate while also modernizing bureaucratic processes that frustrate soldiers and undermine morale.

In May 2023, the Arctic Initiative held a closed-door workshop for climate scientists, regional experts, Indigenous and youth leaders, and national security officials from six Arctic states, with the goal of identifying the most plausible scenarios and pathways for how geopolitics linked to climate change in the Arctic might evolve and actionable steps that the U.S. government might consider taking today to manage emerging risks. Eyck Fremann summarizes his key takeaways from the event.

Overall, "sanctions-proofing" activities by governments do not offer an impermeable shield against financial sanctions due to the strength of the US dollar, the reach of multilateral sanctions, and the speed with which coordinated sanctions can be imposed. However, some sanctions-proofing strategies enable governments to continue pursuing their goals despite sanctions pressure. Analysis of Russia's adaptations to the sanctions should temper expectations of sanctions' ability to alter wartime behavior. The threat of sanctions did not deter war and the initial imposition of sanctions did not coerce a change in the decision to wage war.