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.” ...

Tensions between Poland and Belarus have increased since Russia's invasion of Ukraine. Warsaw accuses Minsk of deliberately controlling migrant flows to put pressure on the EU, an accusation that ...

It’s become a buffer zone since Belarus’ ally, Russia, invaded neighboring Ukraine three years ago. Similar fortifications farther north line Poland’s frontier with the Russian region of ...