Apart from that, the United States is expanding civilian airport infrastructure in Puerto Rico and on the island of Saint Croix, the US Virgin Islands LONDON, November 2. /TASS/. The United States upgrading a long-abandoned base Puerto Rico obviously preparing for potential military operations in Venezuela, Reuters said, citing satellite photos. According to the agency, construction works at the former Roosevelt Roads naval base in Puerto Rico which was closed more than 20 years ago, began on