Air Force Master Sgt. Darrin Oglesby, an optometry technician with the 507th Medical Squadron out of Tinker Air Force Base, Okla., fits a patient with glasses at the optometry section of the Task Force Unity, a coordinated humanitarian civil assistance program that began in the tiny village of Tenga, Mozambique, Aug. 4, 2010, as part of Exercise Shared Accord 2010. (U.S. Marine Corps photo/Lance Cpl. Jad Sleiman)