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Dr. Gissella Vasquez, acting department head for U.S. Naval Medical Research Unit (NAMRU) SOUTH entomology department, right, briefs Adm. Steve Koehler, commander, U.S. Pacific Fleet, center, on operations at U.S. NAMRU SOUTH in Lima, Peru, March 20, 2025. The visit to Peru underscored the United States’ commitment to strengthening deterrence alongside our allies and partners to maintain a secure and prosperous Indo-Pacific. (Photo courtesy of the U.S. Navy)