Lance Cpl. Christopher Mcdowell, 19, a combat engineer

Lance Cpl. Christopher Mcdowell, 19, a combat engineer from Canon City, Col., shovels dirt into a Hesco barrier at a combat outpost in Musa Qal’eh, Dec. 21, 2010. Marines with 1st Combat Engineer Battalion, 1st Marine Division (Forward), use heavy equipment machines to do the majority of the work when filling Hesco barriers, but sometimes engineers must do the work by hand.