Japan Ground Self-Defense Force Narashino Jump 2021 Published May 23, 2021 By Airman 1st Class Tyrone Thomas 374th Airlift Wing Yokota Air Base, Japan -- Japan Ground Self-Defense Force Soldiers assigned to the 1st Airborne Brigade, perform jump rehearsal at Yokota Air Base, May 20, 2021. JGSDF members rehearse their jump procedures before boarding aircraft to ensure successful operations in-flight. (U.S. Air Force Photo by Airman 1st Class Tyrone Thomas.)