| skos:altLabel | - 509th
- 1-509th
- 1st Battalion (Abn), 509th Infantry
- 1st Battalion, 509th Infantry Regiment (Abn)
- 2nd Battalion, 503rd Parachute Infantry Regiment
- 2nd Battalion, 509th Parachute Infantry Regiment
- 3rd Battalion, 509th Infantry Regiment (Airborne)
- 509th Airborne Battalion Combat Team
- 509th Airborne Infantry Regiment
- 509th Inf Reg
- 509th Infantry
- 509th Infantry (Airborne Combat Team)
- 509th Infantry Airborne
- 509th Infantry Battalion
- 509th Infantry Regiment
- 509th Infantry Regiment (Airborne)
- 509th Parachute Infantry Battalion
- 509th Parachute Infantry Regiment
- 509th Parachute Infantry Regiments
- Company C (Pathfinder), 509th Infantry
- U.S. 509th Parachute Infantry Battalion
- 2nd Battalion of the American 503rd Parachute Infantry Regiment
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