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:
USS Green Bay action NBB. en Damage Controlman rd Class Daniel Reveles instructs sailors on the proper wear of gas masks during chemical biological radiological training aboard the amphibious transport dock ship USS Green Bay LPD Green Bay is part of the Peleliu Amphibious Ready Group and with embarked th Marine Expeditionary Unit