From Soviet Republics to EU Member States addresses the legal and political challenges surrounding the EU accession of Estonia, Latvia and Lithuania. Based upon a profound analysis of the Baltic States’ historic development and international legal status, this book examines the gradual development of bilateral relations between the EU and each of the Baltic countries. It discusses the strategic policy choices made in the EU’s fifth enlargement wave and the consequences of its pre-accession strategies. Specific attention is devoted to the impact of enlargement on the triangular relationship between the EU, the Baltic States and Russia. Finally, the constitutional changes within the Baltic States and within the European Union itself are taken into account.