The Three Seas Region represents 121 million people and about 14% of the EU’s GDP. Yet it still faces an estimated €650 billion infrastructure gap across three critical sectors: energy, transport & logistics, and digital. Addressing this gap means unlocking new opportunities for innovation, investment, and resilience — values that Japan and the 3SI countries share deeply.

The report captures key conclusions, visions, and recommendations from the 10th, jubilee edition of the Forum in Warsaw. The event brought together ten Heads of State, government representatives, more than 60 experts, and hundreds of business leaders and investors. It demonstrates that the Three Seas has become a genuine political, economic, and strategic force – strengthening European cohesion and transatlantic ties.