Andrea Menaker is Head of the Firm's Public International Law Group and specializes in investment arbitration, where she has represented respondent States and claimant investors in equal measure in some of the most ground-breaking investment arbitration cases. Andrea also has an active practice in relation to enforcement of arbitral awards and has coordinated such actions worldwide for clients, in addition to serving as expert witness on investor-State issues. Prior to joining White & Case, Andrea was Chief of the NAFTA Arbitration Division for the US State Department where she was lead counsel for the United States in investor-State arbitrations under the investment chapter of the North American Free Trade Agreement (NAFTA), and participated in the drafting of investment and dispute resolution provisions in United States' bilateral investment treaties and investment chapters of free trade agreements.