From introduction: "The role of religion in U.S. foreign policy is a very complex issue. Dependent on the personal attitude of the researcher, religion can play a major or secondary role in analyzing the process of shaping American behavior in international relations. This topic is extremely difficult for political scientists (and I daresay for other scholarly approaches as well) due to its inherently internal nature. It is easier to research and analyze open, accessible and, even if controversial, publicly discussed topics. However, this is not the case with religion. When asked to contribute to the volume on this topic the first feeling was confusion. Undoubtedly, there is religious inclination in the deeds and actions of the following American administrations, but does that mean that all the actions are guided by religious principles? Does it mean that the point of relevance is the divine principles of Christianity? Is the Decalogue the driving force of American foreign policy? Ultimately, how can we measure this topic? I will risk saying no to these questions."(...)