In this paper, the capital market relations between the Euro area and the USA are subject to investigation. Formally based on the uncovered interest rate parity (UIP), first a longrun equilibrium between Euro and US government bond yields is established in backward recursively estimated vector error correction models (VECMs). Subsequently, the focus lies on interest rate leadership and adjustment as well as capital market integration. One major finding shows, that the foundation of the European Monetary Union (EMU) strengthened its role relative to the USA. Furthermore, the transatlantic connections have become closer in the course time.