The 14th Engineer Battalion deployed to Vietnam on 19 October 1966, and participated in twelve campaigns throughout a five-year period. The Battalion earned a Meritorious Unit Commendation for its role in Operations Gatling and Summerall, and was awarded the Republic of Vietnam Civil Actions Unit Citation. 2nd Platoon, Alpha Company was awarded the Presidential Unit Citation while supporting 2nd Battalion, 7th Cavalry during operations in Binh Thuan Province. The Battalion served with such units as the 1st Cavalry Division and the 101st Airborne Division. Volunteers from the Battalion also hauled ammunition to the surrounded Marines in the Khe Sahn Operation Pegasus.