Marguerite Walter is an experienced practitioner of international law and has been teaching at the Georgetown University Law Center since 2011. While she teaches in her personal capacity, Ms. Walter is an Attorney-Adviser in the Office of the Legal Adviser at the U.S. Department of State, where she has advised on various matters of public international law, including international law relating to State conduct in cyberspace; the law of armed conflict; international human rights law; customary international law, including State responsibility under international law; international investment disputes; and negotiation of a variety of international instruments. She also has substantial experience in private practice involving international investment disputes, having handled numerous matters in different arbitral institutions under a range of rules.