Poland on Monday announced details on the planned fortification of its eastern border, including drones, anti-tank barriers and new operating bases. The plan, called Eastern Shield, envisages investments totalling around $2.5 billion and should be completed by 2028. “We have 700 kilometres of border to secure, 400 kilometres of which are with Belarus,” said Deputy Defence Minister Cezary Tomczyk in Warsaw. Along with authoritarian Belarus, Poland shares borders with the Russian exclave of Kaliningrad and with Ukraine, which has been fending off a full-scale Russian invasion for more than two y…