U.S. Marine Corps Staff Sgt. Samuel Jurkowski, instructor, Logistics Operations School (LOS), Marine Corps Combat Service Support Schools, instructs student Marines how to properly utilize cargo netting to secure cargo on pallets during a practical application exercise aboard Camp Johnson, N.C., Oct. 16, 2013. The instructors of LOS teach student Marines how to properly load, build, and secure pallets of cargo for transport. (U.S. Marine Corps Combat Camera photo by Sergeant Mark E. Morrow/Released)