Estonia's greatest military deployment overseas is coming to a conclusion, with soldiers returning from Iraq in September.

The defense alliance of 32 countries is planning to invest billions in its security over the coming decade. But it’s a splurge that some European NATO members, saddled with huge debt burdens, can ...

Despite Russia's major overnight attack on Ukraine, Putin has suffered deepening flight and train mayhem from revenge strikes ...

Fighter jets from NATO nations Poland and Sweden responded to a "massive" Russian aerial assault on Ukraine overnight, the ...

The U.K. and Germany are leading a NATO meeting Monday to discuss sending weapons to Ukraine. British and German defense ...