Images: 1/8 Marines train for operation [Image 20 of 69]
Photo by Albert Carls
U.S. Marine Corps Capt. Daniel F. Obrien, center, company commander of Alpha Company, 1st Battalion, 8th Marine Regiment, Regimental Combat Team 6, rehearses boarding drills with his Marines on Forward Operating Base Whitehouse, Helmand province, Afghanistan, May 11, 2012. Obrien prepared his Marines for an upcoming operation that will require them to be inserted by air.