Airman Maria Atahualpa and Airman 1st Class Brianna Garrett 633 Logistiic Readiness Squadron receiving apprentices, practice a self-defense move during a personal safety class at Langley Air Force Base, Va., April 20, 2011. Joint Base Langley-Eustis is observing Sexual Assault Prevention Month throughout April with a variety of seminars, demonstrations and classes to increase awareness of sexual assault and honor survivors. (U.S. Air Force photo by Airman 1st Class Camilla Elizeu/Released)