President Donald Trump heads to a two-day NATO summit in Europe laden with uncertainty over Iran’s response to U.S. air ...

Allies are poised to pledge to more than double their defense spending to reach a target the president pushed for earlier ...

Tensions between Washington, Canadian and European allies' defense spending have overshadowed NATO for a number of years.

Trump’s appearance at NATO was supposed to center on how the U.S. secured a historic military spending pledge from others in ...

Trump’s first appearance at NATO since returning to the White House was supposed to center on a historic alliance-wide ...