More than 400 U.S. Army 4th Battalion, 25th Infantry Airborne jump from seven C-17 Globemaster III aircraft during exercise Talisman Sabre in Northern Territory, Australia, July 8, 2015. Exercises such as Talisman Sabre offer a uniquely complex and challenging multinational environment for our forces to hone their skills. (U.S. Air Force photo by Senior Airman Stephen G. Eigel)