Battle of New Orleans,
Ohio
In the Battle of New Orleans.
This stunning victory was in New Orleans where the US Military, led by Major General Andrew Jackson routed the British forces. It was more decisive in American minds than from an actual military perspective as the Treaty of Ghent (ending the war) had been signed in Belgium on December 24, 1814, but the British defeat in New Orleans vindicated the US as a nation.
SARATOGA
Decisive clash of carriers; decisive USN victory.
Decisive USN victory.
the Patriots' decisive victory at Kings Mountain, South Carolina
The decisive victory at the Battle of Saratoga, which led France to militarily intervene at the American side.
Decisive Parliamentarian victory
US decisive victory.
Cowpens, South Carolina on January 17, 1781 which Morgan defeated Tarleton in a decisive victory.