The British lost control of Southwestern Ontario as a result of the battle; Tecumseh was killed, and his confederacy largely fell apart.
British troops under Major General Henry Procter had occupied Detroit until the United States Navy gained control of Lake Erie, cutting them off from their supplies.
Procter was forced to retreat north up the Thames River to Moraviantown, followed by the tribal confederacy under Shawnee leader Tecumseh who were his allies.
American infantry and cavalry under Major General William Henry Harrison drove off the British and then defeated the Indigenous peoples, who were demoralized by the death of Tecumseh in action.
The American Army of the Northwest under Major General William Henry Harrison was attempting to recover Fort Detroit and capture Fort Malden at Amherstburg, Ontario during the last months of 1812 and for much of 1813 from the Right Division of the British Army in Upper Canada, which was commanded by Major General Henry Procter.
If naval command of Lake Erie passed to the Americans, they would be able to land an army on the north shore, cutting off Procter from reinforcement from the east.
During July, the British under Commander Robert Heriot Barclay kept the Americans pinned down in Presque Isle, but they had to lift the blockade for two days in order to receive supplies.
Perry's superior squadron instituted a counter-blockade of Amherstburg as soon as his vessels were armed and manned, and supplies of food rapidly ran short.
One thousand mounted troops began advancing along the lake shore to Detroit, and 2,500 foot soldiers were carried there and to Amherstburg by Perry's ships once they had repaired any damage received during the battle.
Procter had made preparations to fall back to the British position at Burlington Heights at the western end of Lake Ontario even before he received news of Barclay's defeat, and Tecumseh knew that this would remove all protection from the confederation tribes whose lands lay to the west of Detroit.
Procter allegedly left the main body of his army under command of Colonel Augustus Warburton of the 41st Regiment, without orders, while he led the retreat accompanied by his wife and family, the other women and dependents, and his personal baggage.
[12] The British soldiers were becoming increasingly demoralized, and Tecumseh's warriors grew ever more impatient with Procter for his unwillingness to stop and fight.
The boats carrying Warburton's reserve ammunition and the last of the food ran aground and were left behind to be captured by an American raiding party.
Most of the regiment's officers were dissatisfied with Procter's leadership, but Colonel Warburton, the next in seniority, refused to countenance any move to remove him from command.
Procter ordered his troops to abandon their half-cooked breakfast and retreat a further two miles shortly after daybreak on October 5, then formed them into line of battle with a single 6-pounder cannon.
[5] General Procter wrote in a letter dated October 23, 1813, "The Indian cause and ours experienced a serious loss in the death of Round Head."
[9] Harrison informed Secretary of War John Armstrong Jr. that the only casualties inflicted by the British were three men wounded; all of the rest were caused by the Indians.
American victory at the Thames failed to translate into recapture of Illinois, Wisconsin, and other Midwestern territories, which the British and Indians held until the war's end; efforts also failed to regain control of the Old Northwest and of fur trade routes after the British victory at the subsequent Engagements on Lake Huron.
However, a comparatively petty dispute with President James Madison and John Armstrong resulted in him resigning his commission as major general.
In May 1814, Procter was charged with negligence and improper conduct, though a court martial could not be held until December, when campaigning had ceased for the winter and a senior board of officers could be assembled.
The following units and commanders of the American, British, and Native American armed forces Battle of the Thames: Army of the Northwest: MG William Henry Harrison General Staff Col Richard Mentor Johnson (w) Governor Isaac Shelby[22] General Staff 1st Division