A camouflaged Cessna O-2 Skymaster sits on the ramp at a Southeast Asia airbase during the Vietnam War. Twin-engine, twin-boom aircraft like the O-2 were flown by Forward Air Controllers (FACs) who located enemy positions and marked them with smoke rockets to direct fighter-bomber strikes. Aircraft revetments in the background provided protection from rocket and mortar attacks common at forward operating bases. Project: 219012