Trump will attend the NATO summit this week in Turkey, where his anger with European allies over the Iran war could upend the U.S.-led alliance.

Donald Trump and Volodymyr Zelenskyy join NATO leaders including Sir Keir Starmer at a summit in Ankara - as NATO secretary general Mark Rutte announces a range of commitments to bolster the alliance'...

The deals, which had been mostly kept under wraps to make a splash at the summit, included European countries buying surveillance drones from U.S. company Northrop Grumman, and NATO buying planes from...