Marines with Bulk Fuel Company A, 6th Engineer Support Battalion, 4th Marine Logistics Group, establish a Logistics Support Area (LSA) at Tucson, Arizona, on May 26, 2021. Logistics Support Areas are set up to conduct horizontal construction operations, which increase and sharpen the unit’s capabilities while supporting the Pima County Department of Transportation through the Innovative Readiness Training program. (U.S. Marine Corps photo by Lance Cpl. David Intriago)