Proof that walls are effective barriers to illegal economic and criminal invaders, page-12

Another fact that can't be ignored...neither Hadrian's wall nor the Great Wall of China stopped invasions.

Both were eventually overrun.

Side note:

Did the mikesmith piece actually include the wailing wall as an example?

FFS...the Western (wailing) Wall in Jerusalem wasn't a barrier wall.

It was the outside structural wall of a building.. The Jewish Temple.

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