U.S. Army Staff Sgt. Miguel Berea, 757th Expeditionary Rail Command railway planning and advisory team member, nudges a rail tie into place during a training course at Joint Base Langley-Eustis, Va., Oct. 4, 2016. After completing the course the team will be able to advise on a variety of global rail operations. (U.S. Air Force photo by Staff Sgt. Natasha Stannard)