U.S. Marine Corps Lance Cpl. Aaron Brown, a Chemical

U.S. Marine Corps Lance Cpl. Aaron Brown, a Chemical Biological Radiological and nuclear defense specialist with Marine Aircraft Group (MAG) 12, picks up trash during Exercise Valiant Shield 18 at Agat beach, Guam, Sep. 17, 2018. Valiant Shield is a biennial, U.S. only, field training exercise (FTX) with a focus on integration of joint training among U.S. forces in relation to current operational plans. This training enables real-world proficiency in sustaining joint forces through detecting, locating, tracking and engaging units at sea, in the air, on land, and in cyberspace in response to a range of mission areas.