This paper advances a structural reinterpretation of the relationship between religion and international power by proposing blocpolitik as an analytical framework. I argue that current paradigms - such as the "Clash of Civilizations" or religious populism - fail to account for how religious narratives and symbols are systematically mobilized by states as strategic resources within a multipolar, bloc-based order. The analysis treats the politicization of religion not as a deviation, but as a structural process where religious authorities and moral vocabularies become embedded in political projects. Within the European context, these dynamics manifest through material and social transformations: the repurposing of religious buildings, the adaptation of rituals, and the use of public and digital spaces to project "civilizational spheres of influence." Using an intersectional lens, the paper examines how these "entangled encounters" between migrant communities and secular-religious European frameworks generate new embodied experiences and social hierarchies. Through comparative cases relevant to the Euro-Atlantic space (such as Russia's Russkiy Mir, Turkey's gönül coğrafyası, and European civilizational populism), the paper demonstrates how states weaponize religious identity to extend influence beyond formal borders. In these encounters, religious traditions are reinterpreted and often "secularized", emptied of theological autonomy to serve as a language of sovereignty and geopolitical belonging. The paper concludes that blocpolitik offers a robust lens to understanding how transnational networks of religious nationalism shape contemporary European societies, transforming religious practice into a key resource for navigating structural inequalities and geopolitical competition.