Historians argue that there was no winners in the War of 1812, neither the USA nor Britain. The main losers, however, were the Native Americans, particularly those who supported the British.
The Battle of New Orleans was crucial in this respect, not least because Andrew Jackson commanded the Americans there.
It is often said that Andrew Jackson hated Indians and that this contributed to his brutal policies towards them when he was president, exemplified by the infamous Trail of Tears. However, as Professor Dan Feller has remarked, Jackson hated the Indians for supporting the British! But even such well observed generalisations need to be qualified. Choctaw leader Pushmataha, ranked as a Brigadier General, led hundreds of warriors on Jackson’s side, at the Battle of New Orleans.
Creek Indians who supported the British were led by Peter McQueen (McQuinn) among others while Kinache led Seminoles. Irishman, Colonel Edward Nicolls, regarded as the greatest hero in the history of the Royal Marines, was a pivotal figure in what transpired.