Transnistria, an unrecognized breakaway region between Moldova and Ukraine, operates autonomously with its own government, ...

The scale of illegal border crossings in the United States has been laid bare in a new analysis of the latest official figures. A map created by Newsweek highlights the states facing the biggest ...

World War I involved 32 nations from 1914 to 1919. It redrew the world map and reshaped many borders in Europe. The collapse of the Russian Empire created Poland, the Baltics, and Finland.

Ukraine’s government wants to restore the country’s frontier to where it was before Russia launched its first invasion more than a decade ago. The U.S. defense secretary said that was “unrealistic.” ...