Poland plans to spend billions of euros on strengthening its eastern border, according to an announcement by Prime Minister Donald Tusk. Tusk said he would put 10 billion zlotys ($2.5 billion) into security, above all along the NATO member’s eastern border, according to PAP news agency. “We are starting a major project to build a secure border, including fortifications and reorganisation of the terrain and the environment, so that this border can no longer serve as a gateway for a potential enemy,” he said, adding that work on the project called “Protective Shield East” has already begun. Alon…