Staff Sgt. Sheri Sellers, 1st Special Operations Medical Operations Squadron immunization clinic NCO in charge, and Tech. Sgt. Melissa Brook, 1st SOMDOS immunization clinic technician, pose for a photograph with their Army Achievement Medals, which were presented to them May 13, 2011, Hurlburt Field, Fla. The two sergeants were given the medal for the help they provided in ensuring the members of the Army Reserve 323rd Regiment, 4th Battalion stay medically ready for possible deployments. (U.S. Air Force photo by Staff Sgt. Sarah Martinez/RELEASED)