Colombia and Venezuela on Monday reopened their border after years of impasse and following the re-establishment of diplomatic relations. “This is a historic day for the country, for the region and for the Americas in general,” Colombian President Gustavo Petro said. The first cargo truck crossed the Simón Bolívar bridge from Colombia and into the neighbouring country for the first time in seven years. Commercial flights are also to resume. Only recently both countries resumed diplomatic relations, but there has been a gradual rapprochement between the two South American nations since Petro wa…