Soldiers stand at the entrance of the Tienditas International bridge that connects Venezuela with Colombia, in Urena, Venezuela, Thursday, Feb. 21, 2019. As a showdown looms over U.S.-supplied humanitarian aid destined for Venezuela, much of it warehoused near the Tienditas International bridge, President Nicolas Maduro closed off his country's border with Brazil, vowing on Thursday to block the emergency food and medicine that has rallied his opponents and which he claims is part of a U.S.-led coup plot. (AP Photo/Rodrigo Abd), APTOPIX