Marines stand at attention as "Taps" is played at a

Marines stand at attention as "Taps" is played at a memorial ceremony at Camp Bastion, Afghanistan, Jan. 24., led by Sgt. Maj. Mitchell Green, left, and Lt. Col. Mark Revor, center, the sergeant major and commanding officer for Marine Heavy Helicopter Squadron 363. The squadron held a ceremony to honor six Marines who were killed when their CH-53D Sea Stallion helicopter crashed conducting combat operations in Helmand province, Afghanistan, Jan. 19. While the crash is currently under investigation, NATO officials said there were no signs of enemy activity in the area at the time of the incident. "Every Marine in this squadron understands the dangers of our job, but that doesn't make it any easier when something like this happens," Green said. "People are shocked, people are upset and people are hurt. We still have a mission to do, and it's not done until we're heading back home to Hawaii."