High Quality Content by WIKIPEDIA articles! USS Viper – commissioned as USS Ferret – was a brig serving the United States Navy during the early days of the republic. Viper was assigned to enforce the Embargo Act of 1807 along the U.S. East Coast. During the War of 1812, while cruising in the Caribbean, she was captured by the more heavily armed British warships. She then served the Royal Navy as HMS Mohawk until she was sold in 1814. While in British service she served in several actions that earned her crew the Naval General Service Medal,