U.S. Air Force and Army members wait to train Dismounted Soldier Training System to prepare for deployment during Operational Contract Support Joint Exercise 2015, March 17, 2015. The DSTS is a virtual training tool that provides motion tracking in a 360-degree range of movement. The exercise's purpose is to increase senior leader awareness of OCS significance, challenges and capabilities and to generate OCS advocacy. (U.S. Air Force photo by Staff Sgt. Veronica Montes)