U.S. Marine Capt. Luis Villasenor, a supply officer with Marine Aircraft Group 41, locates a checkpoint in a land navigation course during Atlantic Alliance 25 (AA25) at Fort Drum, New York, July 3, 2025. AA25 maintains U.S. Navy and Marine Corps joint amphibious capabilities while implementing aircraft and ground support elements. Marines constantly refine their land navigation skills to properly orient themselves in adverse and austere environments that enable them to complete the mission. Villasenor is a native of (U.S. Marine Cpl. Ujian Gosun)