Lethality

U.S. Marine Corps Cpl. Ryan Sevilla, a combat engineer with 2nd Battalion, 23rd Marines forward deployed with 4th Marine Regiment, 3d Marine Division as part of the Unit Deployment Program, posts security on a patrol during Korea Viper 25.4 at Pohang, South Korea, May 5, 2025. Korea Viper is a recurring exercise series that demonstrates the Republic of Korea and U.S. Marine Corps' ability to respond decisively in the region as a singular, unified force while strengthening relationships and trust between the two allies. Sevilla is a native of Ohio. (U.S. Marine Corps photo by Lance Cpl. Tucker Mocan)