Brig. Gen. Vaughn conducts a Pentagon press briefing to provide an update on military support activities. Army Brig. Gen. Clyde A. Vaughn conducts a Pentagon press briefing on Sept. 13, 2001, to provide an update on military support activities to civilian authorities in the wake of the attacks on the World Trade Center and the Pentagon. Vaughn is the director of Military Support and deputy director of Army Operations, Readiness and Mobilization. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 684782-F-SBY91-292.jpg Photo Gallery