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:
Battle drills at Fort Knox DVIDS. en Petty Officer rd Class Geoffrey Martin gunner's mate assigned to Riverine Squadron fires GAUA gun from the bow of riverine assault boat during livefire battle drills The squadron is participating in threeday field exercise to prepare for an upcoming deployment Navy photo by Petty Officer rd Class