A Patrol Boat, River (PBR MK II) awaits unloading at the U.S. Army Transportation Museum on Joint Base Langley-Eustis, Virginia, Feb. 8, 2021. The U.S. Navy developed the PBR to help fulfill the demand for a fast and maneuverable craft to patrol the coastal and river waterways in Southeast Asia. (U.S. Air Force photo by Staff Sgt. Joshua Magbanua)