Regarding fences. In Israel, high quality fences were shown to be practically impenetrable. Except by trained and sophisticated soldiers of Hamas, different story!).
On the border with Egypt, there used to be thousands crossings. The fence took it down to ~10/year or less. In other 3 directions, too , Israel built fences that are pretty much blocking passage.
Is Poland’s “border wall” isn’t working, it’s because it’s not well built enough. And I understand the forest issues. Still decent walls can be built. And you install cameras and sensors and it’s pretty reliable.
Also the Iron Curtain was pretty effective, at least in Czechoslovakia. The people who managed to get across to the West had to do quite insane things, like flying a rogalo or whatnot.
Regarding fences. In Israel, high quality fences were shown to be practically impenetrable. Except by trained and sophisticated soldiers of Hamas, different story!).
On the border with Egypt, there used to be thousands crossings. The fence took it down to ~10/year or less. In other 3 directions, too , Israel built fences that are pretty much blocking passage.
Is Poland’s “border wall” isn’t working, it’s because it’s not well built enough. And I understand the forest issues. Still decent walls can be built. And you install cameras and sensors and it’s pretty reliable.
Also the Iron Curtain was pretty effective, at least in Czechoslovakia. The people who managed to get across to the West had to do quite insane things, like flying a rogalo or whatnot.