French weapons in the American Civil War had a key role in the conflict .
French weapons in the American Civil War encompassed most of the sectors of weaponry of the American Civil War ( 1861 -- 1865 ) , from artillery to firearms , submarines and ironclad warships .
French weapons in the American Civil War had a key role in the conflict and encompassed most of the sectors of weaponry of the American Civil War ( 1861 -- 1865 ) , from artillery to firearms , submarines and ironclad warships .