International Security & Defense

Why do U.S. leaders struggle to end military interventions? William McKinley’s 1898 decision to annex the Philippines reveals why, through a phenomenon called the “meddler’s trap.” This concept denotes a situation of self-entanglement, whereby a leader inadvertently creates a problem through military intervention, feels they can solve it, and values solving the new problem more because of the initial intervention. 

Joseph Nye writes that Washington's strategy towards Beijing should be to avoid either a hot or cold war, co-operate when possible and marshal its assets to shape China's external behaviour. This can be done through deterrence and a strengthening of both alliances and international institutions.

This report, by Maxwell Simon (MPP '23) and Jayaram Ravi (MPP '23), explores the drivers of setback and success that China has encountered in the process of developing dual-use and military-dedicated naval installations abroad. It looks at cases where China has considered or actively pursued military-dedicated installations to characterize Beijing’s general approach to overseas naval base acquisition.

Assaf Zoran argues for all regional nations and international players to engage in continuous dialogue with the involved and fighting parties in order to mitigate the risk of escalation. Such talks should establish political, economic, and military disincentives for further escalation while fostering opportunities for de-escalation.

Racialization—the processes that infuse social and political phenomena with racial identities and implications—is an assertion of power, a claim of purportedly inherent differences that has saturated modern diplomacy, order, and violence. U.S. international security studies has largely omitted racial dynamics from decades of debates. A new framework considers how overt and embedded racialization shape the study and practice of international security. 

During foreign policy disputes involving China and some of its most important commercial partners, why do local leaders punish or protect foreign commercial actors? The decision comes down to the political incentives facing each local leader. Understanding this variation is important because how local leaders treat foreign businesses can influence the overall effectiveness of the Chinese government’s economic coercion against foreign states. 

Power transitions affect a state’s ability to exercise economic statecraft. As a dominating and a rising power approach parity, they face structural incentives to decouple their economies. This decoupling affects business-state relations: high-value businesses within the dominant power tend to oppose their state’s economic statecraft because of its costs to them, whereas low-value businesses within the rising power tend to cooperate because they gain from it. 

Among the many issues surrounding China’s ongoing military modernization, perhaps none has been more dramatic than its nuclear weapons program. For decades, the Chinese government was content to maintain a comparatively small nuclear force. As recently as 2020, China’s arsenal was little changed from previous decades and amounted to some 220 weapons, around five to six percent of either the U.S. or Russian stockpiles of deployed and reserve warheads.

Stephen Walt analyzes how the war in Gaza will have widespread geopolitical effects.

On October 30, 2023, President Biden issued the Executive Order on the Safe, Secure, and Trustworthy Development and Use of Artificial Intelligence, aimed at realizing the benefits of AI, while mitigating critical risks. This article provides an overview of its key national security initiatives and explores issues relevant to implementation