U.S. President Donald Trump, center left, shakes hands with Emmanuel Macron, France's president, as other world leaders look on during a summit of world leaders at the North Atlantic Treaty Organization (NATO) in Brussels, Belgium, on Thursday, May 25, 2017. U.S. President Donald Trump's demands to step up the fight against terrorism are set to resonate with his NATO partners when he visits the alliance headquarters for the first time on Thursday. Photographer: Jasper Juinen/Bloomberg via Getty Images
