504th Parachute Infantry Regiment, 1st Brigade, 82nd Airborne Division

The 504th Infantry Regiment, originally the 504th Parachute Infantry Regiment (504th PIR), is an airborne forces regiment of the United States Army, part of the 82nd Airborne Division, with a long and distinguished history. The regiment was first formed in mid-1942 during World War II as part of the 82nd Airborne Division and saw service in Sicily, Italy, Anzio, the Netherlands, Belgium and Germany.

A parent regiment under the United States Army Regimental System, two battalions from the regiment, 1st Battalion (1-504 PIR) and 2nd Battalion (2-504 PIR), are currently active, both assigned to the 1st Brigade Combat Team, 82nd Airborne Division.

Strike Hold!