WOOD WEIGHT Airmen trying to qualify for the base’s quick response team secure a 100-pound wooden beam on their shoulders as they complete a march at Osan Air Base, South Korea, Aug. 9, 2011. To become a member of the base’s team, airmen have to overcome challenges that test their strength, endurance and ability to act as a cohesive squad. The airman are assigned to the 51st Security Forces Squadron. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 040583-K-MWO51-901.jpg Photo Gallery