Polish President Andrzej Duda, a champion of the Three Seas Initiative.
Photo: PAP/Piotr Nowak
Polish officials believe, though, that this is a "still underestimated" project in the eyes of the US administration.
They argue the United States should be interested in directing more resources to the project to counter the influence of Russia and China. And they argue it could become a gateway to the EU market for American investors.