Developments of the late-20th century in Central and Eastern Europe have changed the political landscape of that region and the world at large. The dissolution of the Soviet Union, Czechoslovakia and Yugoslavia, the collapse of Communism in Europe, market reforms, and the processes of democratization are all seminal events affecting not only the countries in transition but other states as well. These changes presuppose legal reforms also. In this process most of the countries in transition have adopted new constitutions where issues of participation in the international political order and questions of international law enjoy a prominent place. This volume is the outcome of a number of research activities concerning transitions in central and eastern Europe at the Centre of European Law, King’s College, London. It contains essays about constitutional reforms and international law by international judges and academics.