Antonio Flores, Marine Corps Logistics Base Barstow rail operations instructor, teaches a class at Joint Base Langley-Eustis, Virginia, April 11, 2021. The training event was a hands-on application of classroom instruction conducted by Soldiers of the 678th and 679th Movement Control Teams, along with Soldiers of the 757th Expeditionary Railway Center. (U.S. Air Force photo by Staff Sgt. Joshua Magbanua)