According to the Wikipedia article, Belarus-Poland border barrier, Poland constructed for under an equivalent of $500 million US dollars a 187 km combination 5.5 meter high steel wall and an electronic barrier of cameras and motion sensors. There is also the recurring costs of the border guards.
According to the Wikipedia article, Belarus-Poland border barrier, Poland constructed for under an equivalent of $500 million US dollars a 187 km combination 5.5 meter high steel wall and an electronic barrier of cameras and motion sensors. There is also the recurring costs of the border guards.