Articles

A textbook case of coercive diplomacy, Hezbollah's maneuver was calculated and deliberate, which reflects the group's strategic expertise. Drawing on open-source materials and public statements in Arabic and Hebrew, this article analyzes Hezbollah's coercive-diplomacy campaign and examines its implications for escalation scenarios between Israel and its central military opponent.

According to the "Madman Theory" outlined by Daniel Ellsberg and Thomas C. Schelling, and embraced by Presidents Richard Nixon and Donald Trump, being perceived as mad can help make seemingly incredible threats—such as starting a nuclear war—more credible. However, recent research has largely concluded that the Madman Theory does not work. 

There seems to exist a general consensus on how to conceptualize cooperation in the field of international relations (IR). The authors argue that this impression is deceptive. In practice, scholars working on the causes of international cooperation have come to implicitly employ various understandings of what cooperation is. Yet, an explicit debate about the discipline's conceptual foundations never materialized, and whatever discussion occurred did so only latently and without much dialog across theoretical traditions. In this article, the authors develop an updated conceptual framework by exploring the nature of these differing understandings and situating them within broader theoretical conversations about the role of cooperation in IR.

Meghan M. Garrity, an International Security Program postdoctoral fellow at the Harvard Kennedy School's Belfer Center discussed her research on government-sanctioned mass expulsion events at a virtual seminar on November 3, 2022.

Ernest May Fellow in History & Policy Grant H. Golub discussed the World War II–era expansion of the now-defunct U.S. Department of War during a virtual International Security Program seminar on October 13, 2022.

Hostile foreign states are using weaponized information to attack the United States. Russia and China are disseminating disinformation about domestic U.S. race relations and COVID-19 to undermine and discredit the U.S. government. These information warfare attacks, which threaten U.S. national security, may seem new, but they are not. Using an applied history methodology and a wealth of previously classified archival records, this article uses two case studies to reveal how and why a hostile foreign state, the Soviet Union, targeted America with similar disinformation in the past

Kelly Greenhill argues that by exploiting political divisions that exist within targeted states, the threatened or actual deployment of engineered flows of migrants has long been a distressingly effective policy instrument, and it is unlikely to go away anytime soon. Unless policymakers begin to confront the forces that enable weaponized migration, the favored policy responses seem destined to increase, rather than curtail, its use.

White Southerners opposed to Reconstruction used violence to undermine Black political power and force uncommitted white Southerners to their side. Although structural factors made it harder for the U.S. government to suppress this violence, a series of policy failures prompted Reconstruction’s failure and generations of injustice.

An influential model of democratic civil-military relations insists that civilian politicians and officials, accountable to the public, have "the right to be wrong" about the use of force: they, not senior military officers, decide when force will be used and set military strategy. While polls have routinely asked about Americans' trust in the military, they have rarely probed deeply into Americans' views of civil-military relations. 

David Kilcullen, a professor at the University of New South Wales, contributes to the debate of  whether contemporary great-power resurgence constitutes a second bi-polar competition by assessing resurging state and non-state competitors and the challenges they pose to the United States–led world order. While the emerging security environment might not be a new Cold War, Kilcullen contends it may be more dangerous than in the past.