FIREMAN CARRY Airman 1st Class Nikili Carter, of the 307th Security Forces Squadron, uses the fireman carry technique on a teammate during the mental and physical competition during Global Strike Challenge 2011 on Barksdale Air Force Base, La., Nov. 7, 2011. Teams competing in the event were not allowed to know the details of the competition, which included grueling physical and logic scenarios. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 645916-B-IZN92-323.jpg Photo Gallery