This article is an attempt to a thorough chronological analysis of the EC s existing law in the field of international trade since the WTO agreement. It deals with the evolution of the EC s common commercial policy competence through the years, starting with the WTO agreement signed in Marrakesh in 1994 until the days of the European Convention establishing a Constitution for Europe, with a view to enabling the EC with a coherent policy in the WTO framework. Thus, a legal analysis of EC trade policy in the pre-Amsterdam Treaty period, at the Treaty of Amsterdam, at the Treaty of Nice and during the European Convention period is provided.