Tiger Force was the name of a long-range reconnaissance patrol (LRRP) unit of the 1st Battalion (Airborne), 327th Infantry, 1st Brigade (Separate), 101st Airborne Division, which fought in the Vietnam War from November 1965 to November 1967.: 22–3 The unit gained notoriety after investigations during the course of the war and decades afterwards revealed extensive war crimes against civilians, which numbered into the hundreds.