"The "Old Guard:" 3d U.S. Infantry" Topic

"The 3d U.S. Infantry Regiment or "Old Guard" is the oldest regiment in the Regular United States Army. Today, it is best-known for its ceremonial duties at Arlington National Cemetery, but the regiment has a history stretching back to the earliest days of the Republic.

The Old Guard was formed in 1784 as the 1st American Regiment under the command of Lieutenant Colonel Josiah Harmar. It fought under Harmar in the Ohio frontier campaigns of 1790 and 1791. Between 1792 and 1795, it was known as the 1st Sub-Legion, and under that designation played a key role in Major General Anthony "Mad Anthony" Wayne's victory at Fallen Timbers in 1794. One year later, the regiment became known as the 1st Infantry, spending the next 17 years on frontier duty.

During the War of 1812, the 1st Infantry served on the Canadian-Michigan frontier throughout 1812 and 1813. In 1814, it fought along the Niagara River. At the Battle of Lundy's Lane on July 25, 1814, the 1st provided key flank support for the famous actions of Brigadier General Winfield Scott's 1st Regular Brigade…"

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1st Battalion, 5th Field Artillery traces its lineage to 6 January 1776, and is the oldest Regular Army unit on uninterrupted active duty. It is the only active Regular Army unit with credit for Revolutionary War service, and one of the few with credit for War of 1812 service.