At NATO summit, Trump pressures allies on loyalty, defense spending and Greenland

New U.S. strikes on Iran come against the backdrop of the NATO summit in Turkey, where leaders are hoping to strengthen Europe's ability to defend itself.

President Trump brought his long-standing criticisms of European countries, once again expressing frustration over their defense spending and refusal to support the U.

S. and Israeli war in Iran.

Nick Schifrin reports from Ankara. ...