The Legion of the United States was a reorganization and extension of the Continental Army from 1792 to 1796 under the command of Major General Anthony Wayne. It represented a political shift in the new United States, which had recently adopted the United States Constitution. The new Congressional and Executive branches authorized a standing army composed of professional soldiers, rather than relying on state militias. The modern 1st, 3rd, and 4th United States Infantry Regiments of the United States Army trace their lineage to the Legion of the United States.