How the Fate of the Old Northwest was Decided

TL;DR

The Battle of the Thames killed Tecumseh and ended British-Native resistance in the Northwest, securing the region permanently for the United States.

Key Points

• 1.America's 1812 failures forced a complete command overhaul. Madison replaced Secretary of War Eustis with John Armstrong Jr., fired General Smyth, and elevated William Henry Harrison over James Winchester to lead western operations.
• 2.Proctor's supply crisis shaped every British decision. With Lake Erie as his only supply line and Vincent getting priority over resources, Proctor was chronically short of food, ammunition, and naval support from the start.
• 3.The Battle of Frenchtown (January 22, 1813) was a decisive British-Native victory. Proctor led 335 regulars, 278 militia, and 600 warriors to crush Winchester's 934-man force, capturing Winchester himself and routing nearly 400 Americans.
• 4.The River Raisin Massacre inflamed American war sentiment. At least 100 warriors returned to kill between 15–60 wounded American prisoners and burn the makeshift hospitals, with the rallying cry 'Remember the Raisin!' later used at the Thames.
• 5.Oliver Hazard Perry built Lake Erie naval superiority from scratch. Starting at Presque Isle Bay in late 1812, Perry completed USS Lawrence and USS Niagara, smuggled the Black Rock squadron past Fort Erie, and assembled a 9-ship fleet against Barclay's 6.
• 6.Perry's September 10, 1813 victory was total — Barclay's entire squadron captured. After Lawrence was reduced to a hulk, Perry rowed through battle to Niagara, raked Detroit and Queen Charlotte into surrender, and lost only 27 dead and 96 wounded.
• 7.Tecumseh's ultimatum forced the suicidal stand at Moraviantown on October 5, 1813. Proctor's 450 demoralized, hungry, nearly-ammunition-less infantry were routed in minutes; the British fired one ragged volley before collapsing, and Tecumseh was killed in the marsh fighting.
• 8.Tecumseh's death permanently ended pan-Indian resistance. His confederacy fractured immediately; Roundhead, who might have sustained it, had already died of natural causes during the retreat, and most tribes signed truces with Harrison shortly after the battle.