Battle Cry of Freedom: The Civil War Era

by James M. McPherson

In April 1862, Union warships began seizing British merchant vessels plying between England and Nassau or Bermuda, on the grounds that their cargoes were destined ultimately for the Confederacy. The first ship so captured was the Bermuda, which was confiscated by a U. S. prize court. The navy bought her and put her to work as a blockade ship. This added insult to the injury that had already provoked a jingoistic response in Britain. But American diplomats cited British precedents for such seizures. During the Napoleonic wars the royal navy had seized American ships carrying cargoes to a neutral port with the intention of re-exporting them to France. British courts had established the doctrine of “continuous voyage” to justify confiscation of contraband destined ultimately for an enemy port even if the voyage was broken by landing at a neutral port. When this chicken came home to roost in 1862, Whitehall could hardly repudiate its own precedent.

Wow.