U.S. Army Sgt. Nathan Holmes, 249th Engineer Battalion Charlie Company Prime Power production specialist, relays facility data to fellow soldiers during Exercise Empire Rising 2021 at the Washington Aqueduct in Washington D.C., July 14, 2021. The 249th EB provides technical expertise and performs assessments to determine generator requirements at facilities as well the connection materials required at critical public facilities during emergencies. (U.S. Army photo by Greg Nash)