Answer:
The decisive victory at the Battle of Plattsburgh helped encourage peace negotiations between the U.S. and Britain, and on December 24, 1814, the Treaty of Ghent was signed, officially ending the War of 1812.
When did the Battle of Plattsburgh end?
September 11, 1814
Explanation:
On September 11, 1814, at the Battle of Plattsburgh on Lake Champlain in New York, during the War of 1812, an American naval force won a decisive victory against a British fleet.