3rd U.S. Infantry Regiment (The Old Guard)

The 3rd United States Infantry Regiment is a regiment of the United States Army. It currently has three active battalions. It's sometime called The Old Guard, as well as Escort to the President. The regimental motto is "Noli Me Tangere" (from Latin: – "Touch Me Not"). The regiment is a major unit of the Military District of Washington (MDW).
The regiment is the oldest active duty regiment in the US Army. It was first created as the First American Regiment in 1784. It has been the official ceremonial unit of the US Army since 1948.