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:
Synchronized Sinking . Sgt William Wickett nd Radio Battalion performs rescue drill during the Marine Corps Instructor of Water Survival Course at Marine Corps Base Camp Johnson March Wickett from Springfield Mass is one of more than students attending the threeweek MCIWS course The course creates instructors who can train Marines