U.S. Army Reserve Soldier assigned to the 1st Mission Support Command, conducts security operations in prone position during Caribbean Thunder 25 Situational Training Exercise (STX) lanes in Camp Santiago, Salinas, Puerto Rico, Aug 4, 2025. Caribbean Thunder is an annual exercise designed to train and prepare units for supporting Large-Scale Combat Operations (LSCO), enhance its warfighting readiness, and ability to respond to crisis or conflict. (U.S. Army Reserve photo by Sgt. Edrik Torres)