When the political camp centred on the Law and Justice party
(PiS) came to power in 2015, it led to a change in priorities in Polish foreign policy. The Three Seas Initiative (TSI), understood as closer cooperation between eastern states of the European Union in the area between the Baltic, Adriatic, and Black seas, has become a new instrument of foreign policy. The initiative demonstrates the growing importance of Central and Eastern Europe in the global game of great powers. The region has become a subject of rivalry, not only between the United States and Russia but also China. Therefore, the main objective of this article is to try to describe the importance of the region to Germany and how Germany’s stance on the TSI has evolved. The article consists of three parts, an introduction to the issues, the genesis of the TSI, and the definition of goals set by the states participating in this initiative, as well as analysis of the German stance towards the initiative since its development in 2015. The theories of geopolitics and neorealism are used
as the theoretical basis for the analysis.