Submarine assault—by infantryblue horsemen waded dismounted through neck-deep water with their Spencer carbines. “As the rebel bullets began to splash around pretty thick,” recalled a Union officer, northern soldiers discovered that they could pump the waterproof metal cartridges into the Spencer’s chamber underwater; “hence, all along the line you could see the men bring their guns up, let the water run from the muzzle a moment, then take quick aim, fire his piece and pop down again.” The astonished rebels called to each other: “Look at them Yankee sons of bitches, loading their guns under water! What sort of critters be they, anyhow?”2 The pickets surrendered to this submarine assault; Sherman had part of his army across the river on Johnston’s flank by July 9.
Battle Cry of Freedom: The Civil War Era (Oxford History of the United States Book 6) (p. 752). Oxford University Press. Kindle Edition.