evidence: Since early February, CSIS said that the National Bolivarian Armed Forces of Venezuela (FANB) have moved substantial quantities of personnel and equipment to sites near the border. In particular, the military base at Ankoko Island, as well as the airport and coast guard station at Guiria, have seen considerable activity based on social media and satellite imagery analysis. Construction and expansion of the military base on Ankoko Island – Guyana’s half of which was seized by Venezuela – has proceeded at a sustained pace. Social media and satellite imagery both show progress in the building of the bridge over the Cuyuni River to the island, and new pathways now connect the island to the ferry landing. As recently as May 8, CSIS said that video can be seen of a Bailey bridge extending some distance over the river, likely a temporary connection while a more permanent connection is created. A narrow-gauge railroad, no trace of which existed in February, is now being built from the ferry crossing toward the airfield, and once completed it would presumably bring supplies from the airfield to the base and nearby towns, CSIS said. [...] "Meanwhile, the aircraft and the base at (Ankoko) were used to train paratroopers and special operations personnel, as well as to simulate land and maritime operations. As of April 28, the field tents have been relocated to the southern side of the airfield, demonstrating the base’s continued ability to provide logistics and resupply for a sizeable military force continuously for over a month", CSIS asserted.