U.S. Army Reserve Sgt. Soonafai Seloti, assigned to the Forward Support Company, 411th Engineer Battalion, 303rd Maneuver Enhancement Brigade, 9th Mission Support Command, prepares to begin refueling a U.S. Air Force F-35 Lightning II assigned to the 4th Expeditionary Fighter Squadron using a U.S. Army Heavy Expanded Mobility Tactical Truck during Exercise Valiant Shield 2026 at Andersen Air Force Base, Guam, June 22, 2026. Valiant Shield provides allies and partners the opportunity to train as a multilateral force across all domains using emerging technologies. (U.S. Army photo by Staff Sgt. Brady Ellis)