Airman 1st Class Roderick Williams, a bioenvironmental engineering technician assigned to the 28th Medical Operations Squadron, participates in the Pink Day Parade and 5K at Ellsworth Air Force Base, S.D., Oct. 7, 2016. Approximately 100 people participated in the events to show support for breast cancer awareness and prevention. (U.S. Air Force photo by Airman 1st Class Denise M. Jenson)