Some twenty years ago, the importance of international law, particularly for practical purposes, could be described as marginal in national legal orders in the socialist Central and Eastern European (CEE) Countries. The main reason for this was the dualist approach in regard to international law. Fundamental political and economic changes, such as the Velvet Revolution in Czechoslovakia, marked the end of the cold war and the beginning of a transition process. The changes in national legal orders have been accompanied by substantial modifications in the area of constitutional law, mostly resulting in the adoption of entirely new or radically modified constitutions. This is true also for the Czech Republic, Slovakia, Poland and the Russian F...