75th Support Battalion No SVC Ribbon T Shirt. The 75th Support Battalion is a U.S. Army logistics unit providing essential transportation, supply, and maintenance, historically attached to major divisions like the 5th Mech. Inf. Div., known for sustaining combat readiness, with its legacy at Fort Knox and Fort Polk. Note: This differs from the famous 75th Ranger Regiment, an elite special operations force, or the 75th Field Artillery Brigade, both distinct units with "75th" in their names but different roles and components.