Korea Viper Marine Corps Lance Cpls. Aaron Duran, left, and Juan Hilario fire on simulated adversary forces with an M240B machine gun while conducting platoon attacks in an urban environment during Korea Viper at Camp Rodriguez, South Korea, Dec. 17, 2025. The exercise was designed to demonstrate the South Korea and U.S. Marine Corps' ability to respond decisively in the region as a singular, unified force while strengthening relationships and trust. SHARE: Download: Full Size (2.64 MB) Tags: exercises, training, marine corps, indo-pacific, korea viper, korea viper 26.1 Credit: Marine Corps Cpl. John Simpson VIRIN: 251217-M-SH338-1056M.JPG Photo Gallery