President Trump, right and the first lady Melania Trump walk past the honor guards as they arrive to Warsaw, Poland, Wednesday, July 5, 2017. President Donald Trump is back to Europe hoping to receive a friendly welcome in Poland despite lingering skepticism across the continent over his commitment to NATO, his past praise of Russian President Vladimir Putin and his decision to pull the U.S. out of a major climate agreement. (AP Photo/Czarek Sokolowski), APTOPIX