With waves of immigrants and refugees on the move from Africa and the Middle East to Europe, and from Central America and South America to North America, building walls, fences and other obstacles along land borders between countries is becoming a common thing. The United States has fortified its 3,141 km (1,951 miles) long border with Mexico, and in Europe a wall frenzy is on the go as Croatia and Hungary are now building walls on their borders with Serbia. Slovenia is building a wall on its border with Croatia, while Austria is building a wall on its border with Slovenia – all to stop the massive waves of immigrants and refugees coming from Syria, Iraq and other countries.

So with walls rising along land borders, we thought it would be interesting to list the world’s longest land borders between any two countries.

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