A mortarman from the U.S. Army 4th Battalion, 25th Infantry Airborne, sets up a mortar weapon after jumping from a C-17 Globemaster III aircraft during exercise Talisman Sabre in Northern Territory, Australia, July 8, 2015. Exercises such as Talisman Sabre 2015 provide realistic, relevant training which is necessary to maintain regional security, peace and stability. (U.S. Air Force photo by Senior Airman Stephen G. Eigel)