The Siege of Detroit, also known as the Surrender of Detroit, or the Battle of Fort Detroit, was an early engagement in the Anglo-American War of 1812. A British force under Major General Isaac Brock with Native American allies under the Shawnee leader, Tecumseh, used bluff and deception to intimidate the American Brigadier General William Hull into surrendering the fort and town of Detroit, Michigan, and a dispirited army which nevertheless outnumbered the victorious British and Native Americans.