Venezuelan authorities celebrated Monday as the first of five Iranian tankers loaded with gasoline docked in the South American country, delivering badly needed fuel to the crisis-stricken nation that sits atop the world’s largest oil reserves. The gasoline shipments are arriving in defiance of stiff sanctions by the Trump administration against both nations, and they mark a new era in the burgeoning relationship between Venezuela and Iran, which is expanding its footprint in the Western Hemisphere. “We keep moving forward and winning,” Venezuela’s Minister of Energy Tareck El Aissami tweeted.