Lionel Beehner is a PhD candidate in political science at Yale, focusing on international relations. His research examines cross-border violations of sovereignty, norms of nonintervention, and violent non-state actors, with an area focus on the Middle East and former Soviet Union. Prior to Yale, he worked as a senior writer at the website of the Council on Foreign Relations, where he is currently a term member, as well as a contributing writer to The New York Times. His writing has appeared in The Washington Post's Monkey Cage blog, The Atlantic Monthly, Foreign Affairs, Foreign Policy, The New Republic, Slate, The National Interest, and USA Today, where he is a member of its board of contributors. He is a regular contributor to the award-winning Political Violence @ A Glance blog, and is formerly a fellow at the Truman National Security Project. Beehner has reported from over two-dozen conflict and post-conflict zones, including Iraq, Sri Lanka, Bosnia, the southern Philippines, and, most recently, from Syria's border with Jordan. Until 2013, he taught op-ed writing at Mediabistro.com. He holds a master's degree in international affairs from Columbia University's SIPA, and lives in Harlem with his wife, son, and dog.