Watching the Show Army Col. Larry Vaughn, commander of Area Support Group — Black Sea, from left, Adrian Zuckerman, U.S. ambassador to Romania, Senior Enlisted Advisor to the Chairman Ramon 'CZ' Colon-Lopez, and Air Force Gen. John E. Hyten, vice chairman of the Joint Chiefs of Staff, watch the chairman's annual USO tour show with soldiers at Mihail Kogalniceanu Air Base, Romania, Jan. 7, 2020. SHARE IMAGE: Download Image: Full Size (2.95 MB) Tags: hyten, vice chairman, uso Photo By: Army Spc. Ethan Valetski VIRIN: 200107-A-WK337-387.JPG Photo Gallery