During the grinding War on Terror, the Department of Defense has relied on contracted services from the civilian side to help take care of such mundane tasks as cooking and laundry services and fighting the actual war. Contracted civilians free up our troops up for more important things, like sitting on 24-hour desk duties watching pirated movies on borrowed hard drives.
Benjamin Franklin nailed it when he said, "Fatigue is the best pillow." True story, Benny. There's nothing like pushing your body so far past exhaustion that you'd willingly, even longingly, take a nap on a concrete slab.