U.S. Navy Petty Officer 1st Class Quan Hancock, a corpsman

U.S. Navy Petty Officer 1st Class Quan Hancock, a corpsman with 4th Marine Regiment, 3rd Marine Division, works with a medical team from the Japan Ground Self-Defense Force in the surgical aid station during exercise Northern Viper on Hokudaien Training Area, Hokkaido, Japan, Jan. 28, 2020. Northern Viper is a regularly scheduled training exercise that is designed to enhance the interoperability of the U.S. and Japan Alliance by allowing Marine Air-Ground Task Forces from III Marine Expeditionary Force to maintain their lethality and proficiency in MAGTF Combined Arms Operations in cold weather environments.