1ST BATTALION (ABN) 509TH INFANTRY

• Origins in World War II: The 509th Infantry traces its lineage to the 509th Parachute Infantry Battalion, which was the first American airborne unit to see combat in World War II. • First U.S. Combat Parachute Jump: The 509th made the first American combat jump, dropping into North Africa during Operation Torch in November 1942. • Italian Campaign: Elements of the 509th participated in hard-fought battles in Italy, including the landings at Anzio and Salerno. • Bastogne Defense: During the Battle of the Bulge, the 509th was instrumental in the defense of Bastogne, suffering heavy casualties but holding their ground. • Nickname "Geronimo": The battalion earned the nickname "Geronimo" as a tribute to the famous Apache leader and as a traditional paratrooper cry. • Vietnam Era Reformation: In 1963, the 509th was reactivated and redesignated as the 1st Battalion (Airborne), 509th Infantry, becoming the primary opposing force (OPFOR) at Fort Polk, Louisiana. • OPFOR at JRTC: The battalion is famous for being the permanent OPFOR at the Joint Readiness Training Center (JRTC), simulating enemy forces to train U.S. Army units in realistic combat scenarios. • Distinctive Uniforms and Tactics: As the OPFOR, 1-509th soldiers wear distinctive uniforms and utilize unconventional tactics to challenge conventional U.S. forces. • Decorations: The unit has earned multiple Presidential Unit Citations, a French Croix de Guerre, and other decorations for its valor and performance in combat. • Legacy of Innovation: The 1st Battalion (Airborne), 509th Infantry, continues to shape U.S. Army tactics and training, with its legacy extending from the first airborne operations of WWII to modern-day combat training.