More than half the Arctic's coastline is Russian territory and in the last six years Moscow has built more than 475 military bases along its northern border.

Twenty years ago this week, then-President George W. Bush welcomed seven former communist countries into NATO: Estonia, Latvia, Lithuania, Bulgaria, Romania, Slovakia and Slovenia. This marked the ...

The claim that NATO expansion triggered the war is nothing new. But what President Trump is doing is qualitatively different, and far more dangerous.