Missouri National Guard Staff Sgt. Michael Welch, of Company B, 311th Brigade Support Battalion, of Fulton, uses a crank to widen a five-ton expandable van that will be used as the unit's supply office during Vigilant Guard at a logistics support area at Fort Leonard Wood. A logistics support area can be set up anywhere to provide supplies, such as food, water and fuel, as well as a mobile maintenance facility to repair military vehicles and equipment. (Photo by Matthew J. Wilson)