320th STS Airmen execute amphibious training
A U.S. Air Force combat control Airman from the 320th Special Tactics Squadron, Kadena Air Base, prepares to submerge during an amphibious operations exercise Sept. 22, 2015, off the west coast of Okinawa, Japan. Special tactics Airmen are trained to execute a variety of infiltration methods that enable them to be inserted into environments that may otherwise be unreachable. (U.S. Air Force photo by Senior Airman John Linzmeier)

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Photo by: Senior Airman John Linzmeier |  VIRIN: 150922-F-GR156-403.JPG