Rail was in fact critical for supply during the US Civil War. The Siege of Petersburg, whose eventual loss doomed the Confederacy, hinged on the important rail

Rail was in fact critical for supply during the US Civil War. The Siege of Petersburg, whose eventual loss doomed the Confederacy, hinged on the important rail junction in the town. That's just one of many examples. Use of rail in the America conflict prefigured its application the war of 1870 and of course WWI. https://en.wikipedia.org/wiki/Confederate_railroads_in_the_American_Civil_War https://en.wikipedia.org/wiki/Confederate_railroads_in_the_A...