Town Hall Defense Secretary James N. Mattis and Army Command Sgt. Maj. John W. Troxell, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, hold a town hall with members of the Resolute Support coalition in Kabul, Afghanistan, Sept. 7, 2018. SHARE IMAGE: Download Image: Full Size (1.44 MB) Tags: Mattis, Defense Secretary Photo By: Dominique A. Pineiro VIRIN: 180906-D-PB383-005A.JPG Photo Gallery