On 30 December 1994 in Geneva, the four major players in world trade -the United States, the European Union, Japan, andCanada - accepted the Agreement Establishing the World Trade Organization (WTO Agreement).The entry into force of the Agreement on 1 January 1995 brings both expanded and improved trade rules and greatly improved enforcement. We have entered a new era in international dispute settlement. This brief article discusses the Understanding on Rules and Procedures Governing the Settlement of Disputes in Annex 2 of the WTO Agreement, the negotiating process that led to it, and the implementation of the Understanding in the United States.