91st engineers battalion

• Formation in World War I: The 91st Engineer Battalion was first constituted in the National Army on 1 October 1917 as the 66th Engineer Regiment (General Service) and organized at Camp Devens, Massachusetts. • Role in World War II: Reactivated for WWII, the unit was re-designated as the 91st Engineer Battalion (Separate) and was deployed to the Pacific Theater, where it played a crucial role in constructing airfields and infrastructure. • Construction of Henderson Field: The battalion was instrumental in building Henderson Field on Guadalcanal, a critical asset for the Allies during the Solomon Islands campaign. • Combat Engineering: The 91st Engineers not only built roads and airfields but also engaged in combat, defending their worksites against Japanese attacks, making them both builders and fighters. • Philippines Campaign: The battalion participated in the liberation of the Philippines, constructing vital infrastructure under hazardous conditions and earning several commendations. • Decorations: The unit was awarded the Presidential Unit Citation and several campaign streamers for exceptional performance and bravery under fire during WWII. • Post-WWII Service: After WWII, the battalion was inactivated and reactivated multiple times, serving in Germany, Korea, and the United States, adapting to the changing needs of the Army. • Vietnam War Service: Reactivated during the Vietnam War, the 91st Engineer Battalion supported combat operations by constructing bases, roads, and bridges under fire. • Modern Era Deployments: In recent decades, the battalion has deployed in support of Operations Iraqi Freedom and Enduring Freedom, providing engineering support for combat and reconstruction missions. • Unit Motto and Legacy: The 91st Engineer Battalion’s motto is “Acts Not Words,” reflecting a long tradition of action-oriented service and a legacy as one of the Army’s most respected combat engineer units.