Members of the military and national security staffs attend a speech by US President Donald Trump about his administration's National Security Strategy at the Ronald Reagan Building and International Trade Center in Washington, DC, December 18, 2017. President Donald Trump rolled out his first "National Security Strategy", a combative document designed to put meat on the bones of his "America First" sloganeering. / AFP PHOTO / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)
