Who drilled (trained) the Patriots at Valley Forge and introduced the bayonet?

Baron Friedrich von Steuben, a Prussian military officer, drilled the Continental Army at Valley Forge during the winter of 1777-1778. He introduced crucial military training techniques, including the use of the bayonet, which significantly improved the effectiveness of American troops. His disciplined approach and emphasis on organization helped transform the Continental Army into a more formidable fighting force.