River Assault 2018 brings services together
In this image, released by the U.S. Army Reserve, Soldiers with the 489th Engineer Battalion, 420th Engineer Brigade, conduct rehearsal drills in preparation for their helocast exercise during River Assault 2018 at Fort Chaffee in Fort Smith, Arkansas, July 21, 2018. River Assault is a joint, two-week exercise testing the mettle of reguar Army, Army Reserve, and National Guard troops in an austere environment. (U.S. Army Reserve Photo by First Sgt. Daniel Griego/Released)