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Global Law and Public Policy

Arnold & Porter's Global Law and Public Policy practice offers a unique team of former senior U.S. government and international officials with exceptional international law, policymaking, and negotiation experience. These include a former Legal Adviser of the State Department and the National Security Council; the former Under Secretary of State for Political Affairs and Assistant Secretary of State for the Western Hemisphere; a U.S. Senator who served on the Senate Foreign Relations Committee for 30 years; a former Secretary-General and Director-General for Competition of the European Commission; a former Deputy State Department Legal Adviser; a former General Counsel of the CIA; a former U.S. Executive Director of the World Bank; a former general counsel of the Inter-American Investment Corporation (IDB Invest) and the Green Climate Fund; a former Assistant State Department Legal Adviser for the Western Hemisphere; and the former Foreign Minister of Croatia and Croatian Ambassador to the United States. Our lawyers and policy advisers are well-known and respected by senior government officials, public international law professionals, and opinion makers worldwide.

We advise countries, multinational corporations, and individuals on some of the most challenging and sensitive matters of international law, foreign affairs, and national security. The variety and depth of our senior leadership enable us to provide service to clients on innovative and complex issues of first impression. Our extensive and high-level government experience makes us especially responsive to the internal, budgetary, and political concerns of foreign governments. We also provide strategic guidance and assistance to senior executives of corporate clients regarding global market entry strategies and managing global political risks.

We bring to our sovereign and private sector clients deep and practical experience on topics spanning all aspects of public international law and dispute resolution, such as treaty negotiations, ratification, and implementation; laws relating to the immunity of sovereigns and governmental agencies, instrumentalities, and officials; dispute settlement proceedings (both government-to-government and investor-state); international trade and investment matters; the law and practice of international financial institutions; law enforcement cooperation; and numerous other issues.

Our attorneys have negotiated treaties and other international agreements with countries around the world and in international organizations on numerous topics, including:

  • International Trade
  • International Investment
  • Law of Armed Conflict
  • International Financial Transactions
  • Intellectual Property
  • Border Disputes
  • Telecommunications
  • International Aviation
  • Law Enforcement Cooperation
  • Human Rights and Refugees
  • Taxation
  • Counter-Terrorism/Security Assistance
  • Anti-corruption Standards and Enforcement
  • Arbitrary Detention and Hostage Negotiations

Our lawyers have also represented governments before international tribunals, including the International Court of Justice, and a wide array of arbitration tribunals and panels.

Language - English

Key Contacts

Paolo Di Rosa
Paolo Di Rosa
Washington, D.C.
+1 202.942.5060
Thomas A. Shannon, Jr.
Thomas A. Shannon, Jr.
Senior International Policy Advisor*
Washington, D.C.
+1 202.942.5417
Amy Jeffress
Amy Jeffress
Washington, D.C.
+1 202.942.5968
See All Related Professionals

Related Services


  • Chambers UK
    Public International Law – UK-wide (2024)
  • Chambers Global
    Public International Law – Global-wide (2023)
  • The Legal 500 UK
    Dispute Resolution: Public International Law (2023)