Ingolf Vogeler, Types of
International Borders
along the U.S.-Mexico Border |
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Former border check-point buildings, as in this photo on the Spain-France border, sometimes remain as relics of a time when European countries restricted their people from moving freely from one country to another. |
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In other former border crossings in the Schengen area, only national highway speeding signs and/or European Union signs with the country of entry are posted. | |
Although the open borders of Western Europe are rather uncommon officially today, most international borders today are, nevertheless, effectively open for the movement of people and goods, if technically illegal. The length, irregularity, and location in difficult physical environments makes international borders expensive to patrol and nearly impossible to seal, even when there is a will to do so. |