Maj. Patrick Zenk briefs Secretary Panetta at Camp Dwyer. Maj. Patrick Zenk, 1-214 Aviation Regiment (Air Ambulance), briefs Secretary of Defense Leon E. Panetta at Camp Dwyer, Afghanistan, on July 10, 2011. SHARE IMAGE: Download Image: Full Size (0.06 MB) Photo By: VIRIN: 230482-Q-VTM42-529.jpg Photo Gallery