U.S. Marine Corps Sgt. Estevan Perez (center), a diesel mechanic with 3rd Battalion, 3rd Marines, along with some of the local mechanics, work together to fix a broken steering gear from one of the vehicles aboard PRT Jalalabad, Afghanistan on Dec. 22, 2004. These Marines are conducting security and stabilization operations in support of Operation Enduring Freedom. (U.S. Marine Corps Photo by Cpl. James Yarboro)