109th Infantry Regiment

109th Infantry Regiment
United States Army · Public domain · source
Unit name	109th Infantry Regiment
Dates	1898–present
Country	United States
Allegiance	Pennsylvania
Branch	Pennsylvania Army National Guard
Type	Infantry
Role	Light infantry
Size	Regiment
Garrison	Scranton, Pennsylvania
Nickname	"The Fighting 109th"
Motto	"Cives Armis"
Notable commanders	George S. Patton, Raymond S. McLain

109th Infantry Regiment is a historic infantry regiment of the Pennsylvania Army National Guard with roots in militia units raised during the Spanish–American War and formal organization in the early 20th century. The regiment served in major American conflicts including World War I, World War II, and later federal activations for operations linked to Operation Desert Shield, Operation Iraqi Freedom, and homeland security missions after the September 11 attacks. It maintains a lineage tied to civic communities in northeastern Pennsylvania and has earned multiple campaign streamers and unit decorations for combat and peacekeeping deployments.

History

The regiment traces its origins to volunteer formations activated during the Spanish–American War and reorganized in the aftermath of the Militia Act of 1903 into National Guard regiments aligned with Pennsylvania. During World War I elements were federalized and assigned to the 28th Infantry Division for the Meuse-Argonne Offensive and other campaigns. In the interwar period the regiment returned to state control, participated in civil responses during the Great Depression, and underwent reorganization amid National Guard reforms influenced by leaders in the War Department and senior commanders of the United States Army. Mobilized again for World War II, the regiment trained for amphibious and mountain operations before seeing combat supporting campaigns in the European Theater, coordinating with units from the British Army, Canadian Army, and French Army. Postwar, the regiment adapted to Cold War force structures under the oversight of the National Guard Bureau and contributed personnel to NATO commitments during heightened tensions with the Soviet Union. In the 21st century the regiment supplied soldiers to operations associated with Operation Iraqi Freedom, multinational stabilization efforts under NATO and United Nations mandates, and domestic responses following the September 11 attacks.

Organization and Structure

Historically organized as a multi-battalion regiment within the 28th Infantry Division, the 109th's structure mirrored evolving infantry doctrine promulgated by the United States Army Infantry School and the Department of the Army. Unit components have included headquarters companies, rifle companies, weapons companies, and support detachments aligned with divisional assets such as the Division Artillery and Combat Support Company. Personnel strength cycled with mobilizations under the Selective Service System and National Guard federal orders, coordinating with state agencies including the Pennsylvania Department of Military and Veterans Affairs for domestic missions. The regiment maintained armories in communities like Scranton, Wilkes-Barre, and surrounding Luzerne County towns, linking civic institutions such as local veterans' organizations and municipal governments during peacetime training and outreach.

Combat Operations and Deployments

During World War I, elements of the regiment integrated into campaigns on the Western Front, operating in support roles during the Aisne-Marne Offensive and the Meuse-Argonne Offensive alongside formations from the American Expeditionary Forces and coordinating with Allied forces including the British Expeditionary Force. In World War II the regiment participated in operations tied to the European campaign, executing infantry assaults, defensive operations, and patrols that contributed to offensives in coordination with the U.S. First Army and U.S. Third Army. Late 20th- and early 21st-century activations saw soldiers deployed on missions related to Operation Desert Shield logistics and Operation Iraqi Freedom stability operations in conjunction with units from the United States Marine Corps, United States Air Force, and coalition partners. The regiment also executed domestic deployments for responses to natural disasters, working with federal agencies such as the Federal Emergency Management Agency and state emergency management offices during flood relief and civil support tasks.

Training and Doctrine

Regimental training adhered to doctrine issued by the United States Army Training and Doctrine Command and specialized infantry curricula from the United States Army Infantry School at Fort Benning. Predeployment preparations included combined arms exercises, urban operations training, small-unit tactics, and interoperability drills with National Guard Bureau partner units and active-duty counterparts. Training cycles incorporated marksmanship standards set by the U.S. Army Marksmanship Unit, medical readiness coordinated with U.S. Army Medical Command guidance, and leader development influenced by programs from the U.S. Army War College. The regiment participated in joint exercises with state National Guard counterparts and multinational partners through programs administered by NATO and U.S. European Command to enhance collective defense capabilities.

Honors and Distinctions

The regiment earned campaign streamers for participation in major operations during World War I and World War II, and received unit citations from the Secretary of the Army and awards recorded in National Guard heraldry. Individual members were recognized with decorations including the Distinguished Service Cross, Silver Star, Bronze Star Medal, and foreign awards presented by allied governments such as the French Croix de Guerre. Unit citations acknowledged bravery under fire, effective leadership during complex operations, and meritorious service in both combat and humanitarian missions. The regiment’s colors carry streamers denoting participation in specific battles and campaigns recognized by the Center of Military History lineage.

Notable Personnel

Prominent figures associated with the regiment include career officers and noncommissioned officers who advanced to higher commands or civil leadership: leaders who later served in state government, legislators from northeastern Pennsylvania, and senior military officers who held commands within the National Guard Bureau and the United States Army Reserve. Alumni have included recipients of high valor awards, veterans who contributed to veterans' advocacy groups such as the American Legion and Veterans of Foreign Wars, and civic leaders honored by institutions like Pennsylvania State University and local historical societies.

Category:Regiments of the United States Army Category:Pennsylvania National Guard