Tunisian military medical nurses carry a stretcher from a Tunisian helicopter. Tunisian military medical nurses carry a stretcher from a Tunisian helicopter as U.S. Air Force medical personnel observe during a mass casualty exercise at Kharrouba Air Base in Bizerte, Tunisia, on April 3, 2006. The exercise is providing an exchange of medical skills, techniques and procedures between U.S. Air Force medical personnel and the Tunisian military health services. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 679781-F-OYI96-608.jpg Photo Gallery