How Poland turned itself into a fortress with 116-mile razor wire-topped wall after Putin sent migrants to border in hybrid war tactic - as Warsaw bans asylum claims to 'take back control'
A five-metre-high metal fence scythes through the Polish countryside, covered with barbs and topped with razor wire. CCTV cameras and heat sensors alert border guards to movement
A five-metre-high metal fence scythes through the Polish countryside, covered with barbs and topped with razor wire. CCTV cameras and heat sensors alert border guards to movement
