U.S. Air Force Staff Sgt. James Greuel, 35th Security Forces Squadron special reaction team member, treads water during the SRT tryouts at Misawa Air Base, Japan, Sept. 25, 2013. In order to make the team, members had to prove they could swim a lap in the pool and tread water while holding a 10-pound weight.
Airman 1st Class Zachary Kee
<a rel="nofollow" class="external free" href="https://www.dvidshub.net/image/1045945">https://www.dvidshub.net/image/1045945</a>