Gen. Lee, Sun-Jin, Chairman of the Republic of Korea Joint Chiefs of Staff and Joint Defense Headquarters chief director, greets Lt. Gen. Terrence O’Shaughnessy, United Nations Command Korea and U.S. Forces Korea deputy commander and Air Component Command, ROK/U.S. Combined Forces Command and 7th Air Force commander, on Osan Air Base, ROK, Jan. 11, 2016. Lee visited Team Osan to discuss the US/ROK alliance after recent provocative actions by North Korea.