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The Ohio State University

Border walls aren't unheard of, but today they increasingly divide friends, not enemies

Border walls aren't unheard of, but today they increasingly divide friends, not enemies

Critics of President Trump’s orders to build a wall on the U.S.-Mexico border have called the plan immoral or question the normalcy of building a barrier against a longtime ally with which the U.S. is at peace.

It turns out that Trump’s move is not so unusual. Geographers and experts on borderlands say Trump’s wall is part of a growing trend of nations fencing off their neighbors — even those they call friends.

Barriers for military defense are anomalies now, said Elisabeth Vallet, an adjunct professor of geography at the University of Quebec at Montreal and an

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