Senior Airman Joseph Massoglia 10th Security Forces Squadron, United States Air Force Academy, Colorado, performs pushups during a physical fitness assessment Oct. 2, 2014, on Nellis Air Force Base, Nevada. RAC is a two week-long leadership course designed to prepare Airmen for U.S. Army Ranger school and puts the participants through extreme physical, mental and emotional stress. (U.S. Air Force photo by Airman 1st Class Christian Clausen/Released)