Opening water bottle
Airman Juan Loera, 47th Communications Squadron mobile knowledge operator, opens a water bottle after a tire-flipping challenge during the Team Cohesion Challenge on Laughlin Air Force Base, Texas, Aug. 27, 2016. The challenge, developed by GORUCK, was intended to exercise teamwork and push participants, and was modeled after special operations training. (U.S. Air Force photo/ Airman 1st Class Benjamin N. Valmoja)