The aim of this article is to indicate and analyze three selected civilization and culture megatrends that can be observed in the contemporary global policy which are important not only to a state’s foreign policy, but also to identities of particular states. Such analyses are preceded by: firstly, an indication of continuity and change of a state’s foreign policy over centuries, and secondly, an attempt at defining megatrends and selecting a few key megatrends outside the civilization and culture area (such an area essentially refers to norms, values and ideas and accompanying social practices). The following research questions were posed: What is the continuity and changeability of foreign policy since the mid-17th century? What are megatrends? How selected megatrends affect and modify the international environment.