Can you imagine a wall all around France ‽
As for the second par of your argument, I don't know the context but to me it seems more of a correlation than a causation.
Re:French election: Macron defeats Le Pen
by LyndsySimon on Sunday May 07, 2017 @07:55PM
(#14288365)
Yeah, imagine France building a wall!
And let's not forget the infamous Atlantic Wall ...
Back when I was a small boy, almost every month there was some bombing going on in Israel. These attacks have been greatly reduced by several measures, including the building of the wall.