From left: Army Gen. Vincent K. Brooks, commander of Combined Forces Command and U.S. Forces Korea; South Korean Chairman Army Gen. Lee Sun-jin; Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff; Japanese Chief of Defense Adm. Katsutoshi Kawano; and U.S. Pacific Command commander, Navy Adm. Harry B. Harris Jr., pose for photograph at the Pentagon, Oct. 14, 2016. The senior military leaders met to discuss trilateral collaboration in order to respond to increasing North Korean nuclear and missile threats. DoD photo by Navy Petty Officer 2nd Class Dominique Pineiro