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Alexander K. A. Greenawalt joined the ������� faculty in 2006 from the firm of Debevoise & Plimpton LLP, where his practice focused on international disputes. He was a teaching fellow at Columbia Law School in 2005 and was previously a clerk for the Honorable Stephen F. Williams of the U.S. Court of Appeals for the District of Columbia Circuit. Professor Greenawalt is a graduate of Columbia Law School, where he was a James Kent Scholar and Articles Editor of the Columbia Law Review.

Professor Greenawalt’s research focuses on criminal law, international law, and the laws of war. His article, “,” was awarded the 2024 Goettel Prize for Faculty Scholarship, which is awarded based on blind review by a panel of external peer reviewers. He also received the 2018 Goettel Prize for his article "," and the 2016 Goettel Prize for his article, “.” Additionally, he was the 2017 recipient of the Law School's Richard Ottinger Faculty Achievement Award. He has taught Constitutional Law, Criminal Law, International Law, Administrative Law, International Criminal Law, United States Foreign Relations Law, and National Security Law.

Professor Greenawalt was a Visiting Professor at Columbia Law School during the Spring 2017 semester, and has also been a Visiting Professor at St. John’s Law School.

• AB, Princeton University
• MA, Yale University
• JD, Columbia University School of Law

• Administrative Law LAW 671
• Constitutional Law Law 646
• Criminal Law Law 621
• International Criminal Law LAW 617
• International Law LAW 698
• National Security Law Seminar and the Challenge of Terrorism LAW 822

View all of Professor Greenawalt’s publications on , or download his CV (PDF).

• “’With Intent to Destroy, in Whole or in Part’: Genocide, Ethnic Cleansing, and A Lost History,” 2024 Wis. L. Rev. 933 (2024)
• “The Reach of Adjudication,” in Joachim W. Muller & Karl P. Sauvant, eds. The Oxford Annual Review of United Nations Affairs (forthcoming, 2021) (Critical commentary on the work of the International Court of Justice, the International Criminal Court, and other international criminal tribunals)
• , 35 Temp. Int’l & Comp. L.J. 79 (2021) (Invited contribution for symposium on Darryl Robinson’s book, Justice in Extreme Cases, 2020)
• “,” in The Oxford Handbook of International Law (Oxford University Press, 2020)
• “” in The Elgar Companion to the International Criminal Court (Edward Elgar, 2020)
• “Law, Discretion, and Power” in Joachim W. Muller & Karl P. Sauvant, eds. The Oxford Annual Review of United Nations Affairs (2020) (Critical commentary on the work of the International Court of Justice, the International Criminal Court, and other international criminal tribunals)
• “Confronting Power” in “International Court of Justice,” in Joachim W. Muller & Karl P. Sauvant, eds. The Oxford Annual Review of United Nations Affairs (2019) (Critical commentary on the work of the International Court of Justice, the International Criminal Court, and other international criminal tribunals)
• 32 Temple Int’l & Comp. L.J. 25 (2018) (Invited contribution for symposium on Rosa Brooks’ book, How Everything Became War and the Military Became Everything: Tales From The Pentagon, 2016)
• “Judicial Gatekeepers,” in Joachim W. Muller & Karl P. Sauvant, eds. The Oxford Annual Review of United Nations Affairs (2018) (Critical commentary on the work of the International Court of Justice, the International Criminal Court, and other international criminal tribunals)
• , 59 Harv. Int’l L.J. 1 (2018) (recipient of �������’s Goettel Prize for Faculty Scholarship, which is awarded based on blind review by a panel of external peer reviewers)
• “The Fragility of Law,” in Joachim W. Muller & Karl P. Sauvant, eds. The Oxford Annual Review of United Nations Affairs (2017) (Critical commentary on the work of the International Court of Justice, the International Criminal Court, and other international criminal tribunals)
• , 54 Colum. J. Transnat’l L. 531 (2016) (recipient of �������’s Goettel Prize for Faculty Scholarship, which is awarded based on blind review by a panel of external peer reviewers)

• Teaching fellow at Columbia Law School in 2005

• Stevens Family Faculty Scholar
• 2024 Goettel Prize for Faculty Scholarship for his article, ""
• 2018 Goettel Prize for Faculty Scholarship for his article, “”
• 2017 Recipient of the Law School's Richard Ottinger Faculty Achievement Award
• 2016 Goettel Prize for Faculty Scholarship for his article, “”

Administrative Law, National Security Law, International Law, Constitutional Law, U.S. Foreign Relations Law, Human Rights, Legal Theory