Shooters send rounds down range during a sniper training course hosted by the Marksmanship Training Unit aboard the Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., April 25, 2018. The sniper course was held to advance participants’ skills in marksmanship techniques for combat scenarios. (U.S. Marine Corps photo by Lance Cpl. Trevor Terry) - Shooters send rounds down range during a sniper training course hosted by the Marksmanship Training Unit aboard the Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., April 25, 2018. The sniper course was held to advance participants’ skills in marksmanship techniques for combat scenarios. (U.S. Marine Corps photo by Lance Cpl. Trevor Terry)

Freddy Friedewald, 2, participates in the Bike Rodeo with his mother, Capt. Kerry Friedewald, defense counsel, Legal Services Support Team, during the 4th Annual Park-2-Park Bike Ride at Knott’s Sky Park in Twentynine Palms, Calif., April 28, 2018. The purpose of Park-2-Park is to bring families and friends of Twentynine Palms together in celebration of Earth Day. (U.S. Marine Corps photo by Lance Cpl. Rachel K. Porter) - Freddy Friedewald, 2, participates in the Bike Rodeo with his mother, Capt. Kerry Friedewald, defense counsel, Legal Services Support Team, during the 4th Annual Park-2-Park Bike Ride at Knott’s Sky Park in Twentynine Palms, Calif., April 28, 2018. The purpose of Park-2-Park is to bring families and friends of Twentynine Palms together in celebration of Earth Day. (U.S. Marine Corps photo by Lance Cpl. Rachel K. Porter)

A band plays during the Earth Day Festival in Yucca Valley, Calif., April 21, 2018. The festival was held by the Hi-Desert Nature Museum to raise environmental consciousness and educate the public on wildlife conservation and resource management. (U.S. Marine Corps photo by Lance Cpl. Preston L. Morris) - A band plays during the Earth Day Festival in Yucca Valley, Calif., April 21, 2018. The festival was held by the Hi-Desert Nature Museum to raise environmental consciousness and educate the public on wildlife conservation and resource management. (U.S. Marine Corps photo by Lance Cpl. Preston L. Morris)