Roger McGill at the sandbag wall. 3/4 Cavalry Vietnam, 1966. Photo by Roger McGill. Richard Bradley adds: "I originally had an M-14 in A Troop. Later they issued us the M-16's but we had to send them back as the flash suppressors were open and they always got caught in the brush. They finally came back with the circle around the flash suppressor."
Mad minute on LZ Ike, 1968. In the Vietnam War, the "mad minute" was used to describe a drill involving intense automatic weapons fire, intended to flush out infiltrators or ambushes. The area targeted would be something which provided potential concealment for an enemy but not very good protection from projectiles, such as the vegetation line at the edge of a field, or at the edge of a cleared free fire zone around a fire base. All soldiers involved would direct the heaviest rate of continuous fire they could into that area for one minute. Photo by James Tree Machin.