REFILE-WRAPUP 6-U.S. allies hit back at Washington's steel, aluminum tariffs
May 31, 2018 at 21:12 PM EDT
WASHINGTON/PARIS, May 31 (Reuters) - Canada and Mexico retaliated against the United States' decision on Thursday to impose tariffs on steel and aluminum imports and the European Union had its own reprisals ready to go, reigniting investor fears of a global trade war.