First American Regiment

After the conclusion of the American Revolution in 1783, Congress ordered the Continental Army to disband, and General George Washington resigned his commission as commander-in-chief.

Washington submitted his "Sentiments on a Peace Establishment," which called for only a small force, only a 2,631 man regiment to guard the western frontier and the borders with Canada and Spanish Florida.

"[4] Jackson's regiment was disbanded later that month, and Doughty's battery was retained at West Point guarding artillery and ammunition.

The Kentucky militia, which had been left behind by George Rogers Clark to help defend Vincennes but had become a lawless mob, fled at the approach of the regiment.

Harmar left 100 regulars under the command of Major Jean François Hamtramck to build a new fort and conduct operations deep within the Ohio Country.

[8] It comprised the main force of regulars under St. Clair in the campaign to destroy Kekionga, a large Miami village central to the Northwestern Confederacy of Native American nations.

Under Wayne's leadership, the Legion trained extensively before marching north to meet the Native American confederacy that had defeated St. Clair.

During the War of 1812, the 1st Infantry served in Upper Canada (Ontario province) and saw action at the battles of Chippawa and Lundy's Lane and the Siege of Fort Erie.