Merriam Press World War 2 History. A Revised History of the 150th Engineer (Combat) Battalion, XII Corps, Third Army, Europe, 1944-1945, by two of the unit's veterans (Reagan was Commanding Officer). Contents: (1) In the Beginning. (2) Joining the War. Appendices: Chronology, Bailey Bridge Across Sarre Was Built in Blood and Sweat, XII Corps and the 150th Engineer Combat Battalion, Bridging Data, The Bailey Bridge, The Crossing of the Rhine River, Annex to Narrative of Engineer Bridging Operations on the Rhine River, Commendations, After Action Reports, Presidential Unit Citation. 51 photos, 2 illustrations, 1 map.