Members of the Michigan Air National Guard and other visitors to the base exchange at Selfridge Air National Guard Base, Mich., stop by the Mobile United Service Organizations' station Aug. 11. The canteen is one of three such vehicles the USO began using this year to bring the USO to servicemembers who may not regularly come in contact with the organization. There are no USO facilities in Michigan. The mobile center offers a TV lounge, wireless Internet access and other recreational offerings. (U.S. Air Force photo/Staff Sgt. Samara Taylor)