The Baltic countries, all NATO members, announced a 'Baltic Defence Line' to enhance security against external threats, particularly from Russia and Belarus. Poland is also developing a similar project called the 'Eastern Shield.' Defence ministers from these countries met in Daugavpils to discuss funding, emphasizing the importance of physical barriers in modern warfare. Estonia plans to build 600 bunkers along its border with Russia starting in 2025, while Poland's project is expected to be operational by 2028.