The Air Force One plane transporting U.S. President Donald Trump and first lady Melania Trump arrives at the Melsbroek military airport in Steenokkerzeel, Belgium, on May 24, 2017, on the eve of the NATO summit.

The Air Force One plane transporting U.S. President Donald Trump and first lady Melania Trump arrives at the Melsbroek military airport in Steenokkerzeel, Belgium, on May 24, 2017, on the eve of the NATO summit.