Three Seas Initiative Summit in Dubrovnik

30 April 2026

The 11th Three Seas Initiative Summit is being held in Dubrovnik, Croatia. The event brought together leaders of Central and Eastern European countries, associated and strategic partners. The first day of the event focused on discussions about strengthening economic cooperation, infrastructure investment, and enhancing the region’s energy security. The Summit is accompanied by a Business Forum.

The Three Seas Initiative, bringing together 13 countries, continues to strengthen its position as one of the most dynamic regions in Europe. In Dubrovnik, emphasis was placed on the development of north–south transport infrastructure, as well as energy and digital projects, which are crucial for further growth and increasing economic resilience.

A strong emphasis on the first day was placed on Poland’s role as one of the leaders of the initiative. President of the Republic of Poland, Karol Nawrocki, noted in his remarks that the Three Seas Initiative enhances Europe’s competitiveness and contributes to deepening regional cooperation.

“Poland plays the role of both a founding state and a consistent advocate of this initiative; I see it as a foundation of Europe’s competitiveness and a driver of transatlantic cooperation,” the President emphasised.

From the Polish perspective, particular attention was given to transatlantic relations. The President highlighted the importance of cooperation with the United States as a strategic partner and the need for continued engagement in the development of the initiative.

During his visit to Dubrovnik, the Polish President also held a number of bilateral meetings, including with U.S. Secretary of Energy Chris Wright, Prime Minister of the Republic of Croatia Andrej Plenković, as well as with representatives of Polish businesses participating in the Business Forum.

The talks focused on cooperation within the Three Seas Initiative, regional security, and the implementation of joint infrastructure projects, including in the fields of energy and transport. An important element was also the promotion of Poland’s economic potential and its role as a key link in the regional energy system.

During the Dubrovnik summit, Italy joined the Initiative as a strategic partner.

Declaration of the 11th Three Seas Initiative Summit

Photo credit: © Grzegorz Jakubowski/KPRP

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03 November 2025

The 6 th edition of the Three Seas Local Government Congress will be held May 27-28, 2026, under the Honorary Patronage of the President of the Republic of Poland, Karol Nawrocki. This distinction recognises the growing importance of the event, which has become a key platform for cooperation among the countries of Central and Eastern Europe, both in the economic and infrastructural dimensions.

Over five editions of the Congress (2020–2025), more than 5,000 participants from 24 countries have taken part, 104 discussion panels have been held, and 64 foreign delegations have visited Lublin. The scale and international character of the event confirm its increasing role in shaping dialogue across the Three Seas region.

We, the countries representing Central and Eastern Europe (…) through the Three Seas Initiative, Via Baltica, and Via Carpatia, share not only our voice and vision of building a civic community, but also tangible results showing that the Baltic States and the countries of Central and Eastern Europe are capable of implementing major infrastructure projects, emphasised President Karol Nawrocki during his visit to Vilnius last month.

These words perfectly capture the spirit of the Three Seas Congress, which brings together political, academic, and business communities around a shared goal, building a strong, integrated, and cooperative Central and Eastern Europe.

It is also worth noting that in April 2025, Poland hosted the 10th Three Seas Initiative Summit. During the event, participants emphasised the importance of infrastructure and economic cooperation in the region and the need to strengthen cohesion across Central and Eastern Europe. This year, the cooperation format has been expanded to include new members – Albania and Montenegro joined the Three Seas Initiative in the capacity of associated participating states, while Spain and Turkey became new strategic partners. It has already been announced that the 11th Summit will take place in Croatia in 2026.

We cordially invite you to take part in the Three Seas Local Government Congress! Registration will open in the end of January. More details will soon be available at www.congress.lubelskie.pl and on our social media channels.