A Peruvian nurse and doctor observe an operation as part of New Horizons urology-gynecology surgical activities in Chincha province, Peru, July 19, 2012. New Horizons is a U.S. Southern Command-sponsored annual series of joint humanitarian assistance exercises deploying U.S. military engineers, veterinarians, medics and other professions to Central and South American nations for training, construction projects and to provide humanitarian and medical services. (U.S. Air Force photo by Staff Sgt. Michael C. Zimmerman/Released)