1:109th INF(M)

• Origins in the Civil War: The 1st Battalion, 109th Infantry Regiment (Mechanized), traces its lineage to units formed in 1861 as part of the Pennsylvania Volunteer Infantry during the American Civil War. • Pennsylvania National Guard Heritage: The 109th Infantry is a proud element of the Pennsylvania Army National Guard, often nicknamed the “Keystone Division” due to Pennsylvania’s state symbol. • World War I Service: As part of the 28th Division, the 109th Infantry fought in major battles such as the Second Battle of the Marne and the Meuse-Argonne Offensive, earning a reputation for bravery and resilience. • World War II Valor: The regiment saw heavy combat in the European Theater, including the Normandy Campaign, Battle of the Bulge, and the Rhineland, suffering significant casualties but helping turn the tide against Nazi Germany. • Medal of Honor Recipients: Members of the 109th Infantry have received the Medal of Honor, the nation’s highest award for valor, for their actions in both World Wars. • Cold War Mechanization: The unit transitioned to a mechanized infantry role during the Cold War, adapting to new tactics, vehicles, and weaponry as part of America’s evolving defense strategy. • September 11th Response: Following the attacks of September 11, 2001, 1/109th INF(M) was mobilized for homeland defense and later deployed overseas as part of the Global War on Terror. • Service in Iraq and Afghanistan: The battalion has participated in multiple deployments to Iraq and Afghanistan, conducting security, training, and combat operations alongside coalition partners. • Community Ties: The 1/109th INF(M) maintains close connections to its local communities in Pennsylvania, often participating in parades, disaster relief, and veteran commemorations. • Distinctive Unit Insignia: The 109th Infantry’s insignia features a lion and a red keystone, symbolizing both courage and the regiment’s Pennsylvania roots.