Petty Officer 3rd Class, Norberto Zamora, a hospital corpsman with 2nd Battalion, 5th Marines, Regimental Combat Team 6, watches the horizon during a security halt, July 1, 2012. Zamora’s training was put to the test within his first week in Afghanistan when troops step on an improvised explosive device while on a patrol. - Petty Officer 3rd Class, Norberto Zamora, a hospital corpsman with 2nd Battalion, 5th Marines, Regimental Combat Team 6, watches the horizon during a security halt, July 1, 2012. Zamora’s training was put to the test within his first week in Afghanistan when troops step on an improvised explosive device while on a patrol.