NATO's biggest summit of the year was a win for the U.S. President, who secured the pledges of dramatically increased defense spending he has long demanded.

The President rode in on a wave of momentum, but events during his trip revealed the risks of his disruptive approach:

U.S. TO MEET WITH IRAN: Trump said U.S. and Iranian officials would meet next week on how to move forward following U.S. airstrikes on Iran's nuclear enrichment sites. Trump continued to claim the strikes devastated Iran's nuclear program, contrary to a U.S. intelligence assessment that the damage set the program back by only several months.