The Three Seas Initiative is an idea started by some European countries. It's a cooperative effort between countries that share the space between the Adriatic Sea, the Baltic Sea, and the Black Sea. The goal of the Three Seas Initiative is to make sure that those countries have strong economic and energy connections. The countries involved in the Three Seas Initiative want to develop better roads, railways, and energy infrastructure. They also want to make sure that the countries involved in the Initiative will be able to work together to help each other out in times of need.