The article concerns selected problems in the bilateral cooperation between Poland and Romania in 2009–2017. The study attempts to identify the challenges these countries face and how they take action in this regard. The article presents the problem of political and economic cooperation between Poland and Romania in the examined period of time. Issues such as cooperation in the area of external security, energy security or cooperation within the framework of the Three Seas Initiative were discussed. It is important that the joint activities undertaken by Romania and Poland contribute to increasing the attractiveness of the region of Central and Eastern Europe.

The main priorities of President Andrzej Duda’s foreign policy

In the present state of the political system, the powers of the Polish president to conduct an independent foreign policy are quite limited. But, in the case of the Andrzej Duda presidency, there are certain areas in which his activities between 2015–2021 were dominant, however. It mainly concerned the Three Seas Initiative, the aim of which is to integrate the economy and infrastructure of Central European countries. The Polish president was and still is the main architect of this project. Moreover, he plays an important role in shaping Poland’s relations with Ukraine, and above all with the United States. It should be noted that in the latter cases, they were closely related to another scope partly within the remit of the Polish president – security policy.

Status and importance of the Three Seas in construction of contemporary global security architecture

This article covers a cross-sectional and updating reflection on the phenomena taking place in the security sphere of the region, the so-called Three Seas. The research subject of the article is the Three Seas Initiative format as a potential subjective keystone of the security of Central and Eastern Europe, treated taking into account historical and current events, as one of the foundations of not only the European or Euro-Atlantic, but also the global security architecture. The priority research goal was to present and analyze the progress and integration and institutional perspectives of the Three Seas Region, and thus an attempt to search for the status arrangements of this format, by analyzing this geopolitical space in the light of, above all, the concept of regional security complexes (but also, among others, geopolitical wedges, the influence of superpowers of the global balance of power). The findings presented in these investigations signal both attempts to comprehensively bind the region with interdependence, attempts at far-reaching rapprochement and co-creation of soft security architecture – in the form of development-progressing infrastructure, as well as pragmatic and conservative behavior, resulting from both the geopolitical dynamics and current national calculations of the Three Seas countries.