Staff Sgt. Otto Yan, 28th Security Forces Squadron military working dog handler, performs kettlebell raises during the Sexual Assault Prevention Combat Challenge in the Pride Hangar at Ellsworth Air Force Base, S.D., April 24, 2014. Twelve teams of four people competed in the event done as part of Sexual Assault Awareness and Prevention Month. (U.S. Air Force photo by Senior Airman Zachary Hada/Released)