Major General Lawson Magruder III, Commander, Army South, looks on as Brigadier General Sergio Arnoldo Camargo Murralles, CHIEF of STAFF, Guatemalan Army is briefed by CHIEF Warrant Office Montufar on the operation of Night vision (an/vis-6) Goggles installed on a flight helmet. Brig. GEN. Murralles was on a visit to U.S. Army Southern Command