to the Channel ports. For its behavior on that occasion the regiment was cited by the British and its commander was decorated. Perhaps you were not aware that two companies of Engineers fought alongside the Marines in the Bois de Belleau. And, when the gray hordes of Hindenburg were reeling back from the Marne, a report from the Rainbow Division ended: “Our advance troops, the 117th Engineers, are pressing the enemy closely.” But the story that will live longest in the annals of the famous corps is that of the sergeant of the railway regiment at Cambrai, who, surrounded by the enemy, refused to surrender and defended himself with his only weapon, a crowbar. When they found him, hours later, the crowbar was still clutched in his dead hand. About him, with crushed skulls, lay seven Germans. The innumerable new devices produced by the Great War, however, required for their operation great numbers of specially trained men, so that the Corps of Engineers, from an organization consisting solely of sapper troops, found itself called upon to do more and more work in almost every branch of engineering. To meet these demands men were accordingly trained as specialists and assigned to specialist regiments and battalions, so that, when the war ended, the Corps of Engineers consisted of camouflage, car-repair, crane-operator, dock-construction, dredging, electrical and mechanical, forestry, general-construction, highway, inland-waterway, light-railway construction, shop, and operation, locomotive-repair, military-mapping, mining, pontoon park and train, quarry, railway-transportation, road, sapper, search-light (including antiaircraft), sound-and-flash-ranging, standard-gauge railway-construction, operation, shop and maintenance-of-way, supply, surveying and printing, trades and storekeepers, transportation and water-supply troops, organized as needed into companies, battalions, or regiments.