The 1st Squadron, 91st Cavalry Regiment (Airborne) is a light Airborne Reconnaissance Squadron currently serving as the 173rd Airborne Brigade's Reconnaissance, Surveillance and Targeting Acquisition (RSTA) Squadron based out of Tower Barracks in Grafenwöhr, Germany. It is the only Airborne RSTA Squadron within the European, Middle East, and Africa (EMEA) area of responsibility.