Airmen from the 36th Security Forces Squadron flip a tire during the Defender Challenge June 22, 2015, at Andersen Air Force Base, Guam. Airmen tested their physical and mental strength through various obstacles and challenges during the competition, ending with a live-fire shooting course. (U.S. Air Force photo by Airman 1st Class Joshua Smoot/Released)
Airmen from the 36th Security Forces Squadron perform flutter kicks during the Defender Challenge June 22, 2015, at Andersen Air Force Base, Guam. Airmen tested their physical and mental strength through various obstacles and challenges during the competition, ending with a live-fire shooting course. (U.S. Air Force photo by Airman 1st Class Joshua Smoot/Released)
Airmen from the 36th Security Forces Squadron perform knee-ups while holding a training weapon during the Defender Challenge June 22, 2015, at Andersen Air Force Base, Guam. Airmen tested their physical and mental strength through various obstacles and challenges during the competition, ending with a live-fire shooting course. (U.S. Air Force photo by Airman 1st Class Joshua Smoot/Released)
A 36th Security Forces Squadron Airman runs as he shoots targets during the Defender Challenge June 22, 2015, at Andersen Air Force Base, Guam. Airmen tested their physical and mental strength through various obstacles and challenges during the competition, ending with a live-fire shooting course. (U.S. Air Force photo by Airman 1st Class Joshua Smoot/Released)
Airmen from the 36th Security Forces Squadron push a Humvee down a hill during the Defender Challenge June 22, 2015, at Andersen Air Force Base, Guam. Airmen tested their physical and mental strength through various obstacles and challenges during the competition, ending with a live-fire shooting course. (U.S. Air Force photo by Airman 1st Class Joshua Smoot/Released)