The First Sumatran expedition, which featured the Battle of Quallah Battoo (Aceh: Kuala Batèë, Indonesian: Kuala Batu) in 1832, was a punitive expedition by the United States Navy against the village of Kuala Batee, presently a subdistrict in Southwest Aceh Regency. The reprisal was in response to the massacre of the crew of the merchantman Friendship a year earlier. The frigate Potomac and its crew defeated the local uleëbalang (ruler)'s forces and bombed the settlement. The expedition was successful in stopping Sumatran attacks on U.S. shipping for six years until another vessel was plundered under different circumstances, resulting in a Second Sumatran expedition in 1838.