information:classification
19th century

After the American Revolution, the Royal Navy began improving the harbours on the Bermudas. In 1811, work began on the large Royal Naval Dockyard on Ireland Island, which was to serve as the islands' principal naval base guarding the western Atlantic Ocean shipping lanes. To guard the dockyard, the British Army built the Bermuda Garrison, and heavily fortified the archipelago.

During the War of 1812 between Britain and the United States, the British attacks on Washington, D.C., and the Chesapeake were planned and launched from Bermuda, where the headquarters of the Royal Navy's North American Station had recently been moved from Halifax, Nova Scotia.

In 1816, James Arnold, the son of Benedict Arnold, fortified Bermuda's Royal Naval Dockyard against possible US attacks. Today, the National Museum of Bermuda, which incorporates Bermuda's Maritime Museum, occupies the Keep of the Royal Naval Dockyard.

Due to its proximity to the southeastern US coast, Bermuda was frequently used during the American Civil War as a stopping point base for the Confederate States ' blockade runners on their runs to and from the Southern states, and England, to evade Union naval vessels on blockade patrol. The blockade runners were then able to transport essential war goods from England and deliver valuable cotton back to England. The old Globe Hotel in St. George's, which was a centre of intrigue for Confederate agents, is preserved as a public museum.