Article continues below advertisementPresident Donald Trump was dragged on social media after threatening to expand the use of military forces in U.S. cities. Trump, 79, spoke at length about his decision to send the National Guard into U.S. cities, including Washington D.C. and Chicago, to U.S troops aboard the USS George Washington in Yokohama, Japan, on Tuesday, October 28.Article continues below advertisementDonald Trump Addressed U.S. Troops Source: Fox NewsDonald Trump addressed U.S. troops while in Japan."We have cities that have trouble.