The "Three Seas" initiative is a regional cooperation platform in Europe, established in 2015. It aims to enhance connectivity and economic development among countries located between the Adriatic Sea, Baltic Sea, and Black Sea. The initiative focuses on infrastructure, energy, and digital projects to strengthen ties among its member states. The initiative includes 12 countries from Central and Eastern Europe, such as Poland, Hungary, and Romania. By promoting collaboration and investment, the "Three Seas" initiative seeks to improve the region's economic resilience and reduce disparities within the European Union.