International Security, the #2 journal in International Relations based on 2021 impact factor, publishes lucid, well-documented essays on the full range of contemporary security issues. Its articles address traditional topics of war and peace, as well as more recent dimensions of security, including environmental, demographic, and humanitarian issues, transnational networks, and emerging technologies.

International Security has defined the debate on US national security policy and set the agenda for scholarship on international security affairs for more than forty years. The journal values scholarship that challenges the conventional wisdom, examines policy, engages theory, illuminates history, and discovers new trends.

International Security is published by the MIT Press, and sponsored and edited by the Belfer Center for Science and International Affairs, Harvard University.