1st Battalion, 509th Infantry Regiment

1st Battalion, 509th Infantry Regiment
Unit name	1st Battalion, 509th Infantry Regiment
Dates	1942–1945; 1963–present
Country	United States
Branch	United States Army
Type	Airborne Infantry
Role	Airborne infantry
Size	Battalion
Command structure	4th Infantry Brigade Combat Team (Airborne), 25th Infantry Division
Garrison	Fort Richardson, Alaska
Nickname	"Geronimo"
Motto	"All the Way!"
Battles	World War II, Vietnam War, Operation Just Cause, Gulf War, Iraq War, War in Afghanistan (2001–2021)
Decorations	Presidential Unit Citation, Valorous Unit Award, Meritorious Unit Commendation

1st Battalion, 509th Infantry Regiment is a United States Army airborne infantry battalion, currently assigned to the 4th Infantry Brigade Combat Team (Airborne), 25th Infantry Division. Known as "Geronimo," the battalion has a storied lineage tracing back to World War II and is renowned for its role in airborne operations and special operations. It maintains a high state of readiness for rapid worldwide deployment in support of national defense objectives.

History

The battalion's lineage originates with the 509th Parachute Infantry Battalion, activated in 1942 at Fort Benning. It executed the U.S. Army's first combat jump during the North African campaign at Algiers. The unit fought through the Italian campaign, participating in the Battle of Anzio and the invasion of Southern France, earning a formidable reputation. After World War II, the battalion was inactivated, only to be reconstituted in 1963 as part of the 8th Infantry Division in Mainz, West Germany, during the Cold War.

Organization

The battalion is organized as a traditional airborne infantry battalion, consisting of a headquarters and headquarters company, three rifle companies, and a weapons company. It falls under the command of the 4th Infantry Brigade Combat Team (Airborne), 25th Infantry Division, which is itself part of United States Army Alaska. This structure is designed for rapid deployment and mission flexibility, operating in joint and combined arms environments. The battalion is permanently stationed at Fort Richardson, Alaska, a strategic location for Arctic and Pacific operations.

Notable operations and deployments

Following its reactivation, the battalion served in the Vietnam War, conducting operations in the Central Highlands. In 1989, it participated in Operation Just Cause in Panama. During the Gulf War, elements deployed in support of Operation Desert Storm. Post-September 11 attacks, the battalion saw extensive combat in the Iraq War, including operations in Baghdad and Mosul, and multiple rotations in the War in Afghanistan (2001–2021), fighting in provinces like Khost and Paktika. It has also conducted numerous Joint Readiness Training Center rotations and partnered with NATO allies in exercises across Europe.

Equipment and training

The battalion is equipped with standard U.S. Army infantry weapons systems, including the M4 carbine, M249 light machine gun, and M240 machine gun. It utilizes the M119 howitzer for fire support and various tactical vehicles for mobility. Training is centered on mastering airborne tactics, urban warfare, mountain warfare, and cold-weather warfare specific to the Arctic environment. Soldiers undergo rigorous courses at the United States Army Airborne School and the Northern Warfare Training Center to maintain expertise in parachuting and survival in extreme conditions.

Honors and awards

The battalion has been recognized with numerous unit awards for extraordinary heroism. It received the Presidential Unit Citation for its actions at Anzio. For valorous combat in Iraq, it was awarded the Valorous Unit Award. The battalion has also earned the Meritorious Unit Commendation for service in Afghanistan. Its campaign participation credit spans from World War II to the most recent Global War on Terrorism, and soldiers have been decorated with individual awards including the Silver Star, Bronze Star Medal, and Purple Heart.

Commanders

Command of the battalion is held by a lieutenant colonel, supported by a Command Sergeant Major. Notable past commanders have included officers who later achieved high rank within the United States Army Special Operations Command. The commander is directly responsible to the 4th Infantry Brigade Combat Team (Airborne), 25th Infantry Division commander for the unit's readiness, training, and execution of missions worldwide. The identity of current and many former commanders is often not publicly detailed due to the unit's frequent involvement in sensitive operations.

Category:Infantry battalions of the United States Army Category:Airborne units and formations of the United States Army