Roads could not sustain long-distance Civil War logistics, making navigable rivers and railways the campaign's essential transport network. Rail lines often connected closely with river routes because steam locomotives and steamships both depended on frequent supplies of fresh water. This infrastructure shaped where armies could move men, ammunition, food, and heavy equipment over useful distances. USS Cairo introduces the armed river steamer as a purpose-built response to that strategic geography.
Chapter · 19:41-21:22
The American Civil War as a river-and-railroad war
Navigable rivers and railways formed the long-distance logistics network that made paddle steamers central to American Civil War campaigning.