The idea to organize a youth exchange about Regions in the European Union arose during our previous projects. Members of our association participating in projects both in Poland and in partner organizations have observed that European countries differ internally. Sometimes participants come to a youth exchange from a specific region, speak with a slightly different accent, present their local cuisine and culture, and feel very connected to the region they come from. During the meetings of our association, we decided to explore this topic more deeply and read more about regions in the European Union. We discovered that one of the effects of growing integration in the process of unifying Europe has been the increasing importance of regions and the concept of regionalism, both within member states and the European Union as a whole. The idea is to explore, discuss, and understand the complexities and dynamics of regionalism within the EU from the perspective of young people, using mostly non-formal education methods including culture sharing and an understanding of what the EU has been doing to improve sustainable development in various regions, including green transition and ecological initiatives. The program we designed is aimed at deepening the understanding of regional identities, cultures, traditions, policies, and social problems, and their role in EU policies and programs. The objectives of this youth exchange are: To familiarize participants with the significance of regions in the European Union and their importance for the EU, which is not only a Union of States but also a Union of Regions. To promote cultural exchange and mutual understanding among youth from diverse EU regions. To encourage tolerance and inclusion through the acceptance of regional identities, minority languages, dialects, cultures, etc. as well as to draw attention to the situation of rural youth and European Youth Goal no. 6. To demonstrate that EU regions are diverse and should develop sustainably, embracing eco-friendly, greener, and fairer practices. To provide participants with opportunities to develop their talents and competencies in a practical way through engagement in video production, poster sessions, simulation and presentation games, and workshops. The consortium of youth NGOs from Spain, Italy, Greece, the Czech Republic, and Poland is exceptionally well-suited to address the topic of regionalism in the EU, given the unique regional dynamics present in each of these countries. For young people and youth NGOs in Greece, for example, the ongoing decentralization process, which began with the creation of 13 regions in 1986 and further reforms in 2010, has made regional governance a critical aspect of public life. Understanding the competences of regions, including sustainable development, social cohesion, and local planning, is essential for young people who wish to engage in local governance and community development. Greece's regional diversity, exemplified by the special autonomous status of Mount Athos, adds further layers to the discussion, making it highly relevant to youth interested in governance and regional identity. In Spain, regionalism plays a particularly strong role, with the Constitution of 1978 establishing a delicate balance between centralist and federalist visions of governance. The decentralization process, especially in historically distinct regions such as Catalonia, the Basque Country, and Galicia, provides an excellent backdrop for discussions about how regional identity can coexist within a unified state. This historical context is mirrored in Italy, where the recognition of "special regions" like Sardinia, Sicily, and Trentino-Alto Adige grants them legislative and financial autonomy due to their unique cultural, linguistic, and geopolitical factors. In the Czech Republic, the law on regions ensures that each region operates as both a territorial community of citizens with rights to self-government and as a public corporation managing its own property and budget. This dual role of regions, carrying out both independent tasks and delegated responsibilities from the state, provides a rich example of how regional governance can function in a decentralized system. Similarly, in Poland, regions represent the third level of self-government, playing an essential role in local administration and planning. Given these diverse yet complementary experiences with regionalism across the participating countries, this youth exchange project offers a unique opportunity for young people to explore and discuss regional identities and governance within the EU. The partnership between these five nations allows for an in-depth exploration of how regionalism shapes political, cultural, and economic landscapes in Europe, fostering a deeper understanding of the role regions play in building a more inclusive and cohesive European Union.