Battle of Plattsburgh

Battle context

The Battle of Plattsburgh ended the final British invasion of the northern United States during the War of 1812. A British army under Prevost, numbering approximately 11,000, converged on Plattsburgh alongside a naval squadron under Downie, facing a combined American force of around 3,500 regulars, militia, and naval vessels under Macomb and Macdonough. British casualties stood at roughly 300 against approximately 200 American, reflecting the scale of the repulse. By halting this invasion, the battle removed British leverage over the northern frontier at a moment when peace negotiations were already underway, denying Britain a territorial foothold that could have altered the terms of the Treaty of Ghent.