Maj. Sandra Heredia retires
U.S. Air Force Lt. Col. Dalian Washington Sr., 20th Force Support Squadron commander, presents Maj. Sandra Heredia, 20th FSS director of operations, with her certificate of retirement after almost 30 years of service, Shaw Air Force Base, S.C., March 15, 2013. Heredia first enlisted in 1983 as an administrative specialist. She was commissioned in 2000 after receiving her master’s degree in management in 1999.