December 21, 2017 - Sevilla, Spain - Country music artist Jerrod Niemann performs during Chairmans USO Holiday Tour at Moon Air Base Dec. 21, 2017. Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman, along with USO entertainers, visited service members who are deployed during the holidays at various locations across Europe and the Middle East. .(Credit Image:
{}