Hq & Hq & Svc Co , 315th Engr. Bn

The Headquarters, Headquarters and Service Company, 315th Engineer Battalion (Hq & Hq & Svc Co, 315th Engr. Bn) was first constituted in the Organized Reserves in 1921 and assigned to the 90th Division. Over the decades, the unit has seen multiple activations and inactivations, notably serving with distinction during World War II in the European Theater, where it provided critical engineering support during key campaigns such as Normandy and the Rhineland. The battalion has continued to evolve, participating in subsequent conflicts and training exercises, and today supports a wide range of engineering missions, including construction, mobility, and disaster response. The 315th remains a vital component of the Army Reserve’s engineering capability.