This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Naval Amphibious Base Coronado NUD. en Basic Crewman Training candidate digs through sand and under barbed wire while running Naval Special Warfare obstacle course on Naval Amphibious Base Coronado The BCT candidates are participating in training evolution known as the Tour This threeday twonight training session is the final stage