The announcement on sending US troops to Poland didn't stop Washington's other force posture decisions from generating concern among NATO allies.

The abrupt policy reversal leaves NATO allies wondering to what extent the United States will defend Europe.

NATO's European members will look to sound out US Secretary of State Marco Rubio on troop cuts by Washington Friday, as they seek to smooth over President Donald Trump's ire ahead…

Poland's right-wing president has welcomed Trump's announcement.