U.S. Army Reserve Soldiers assigned to the 1st Mission Support Command, walking to the start point of a Caribbean Thunder 25 Situational Training Exercise (STX) lane 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)