The transportation corps is a combat service support branch of the U.S. army. It is also one of three U.S. army logistics branches, the others being the quartermaster corps and the ordnance corps. The transportation corps is responsible for the movement of personnel and material by truck, rail, air, and sea. Its motto is «Spearhead of Logistics».
One of the greatest feats of the Transportation Corps, via the Military Railway Service, was the rebuilding of France's shattered railroad network after D-Day and the transportation of 1,500 locomotives and 20,000 railway cars.