The 502nd Infantry Regiment, previously titled the 502nd Parachute Infantry Regiment, is an infantry regiment of the United States Army. The regiment was established shortly after U.S. entry into World War II, and was assigned as a regiment of the 101st Airborne Division, "The Screaming Eagles", one of the most decorated formations of the U.S. Army. The regiment saw substantial action in the European Theater of World War II and was inactivated in 1945, shortly after the end of the war. Reactivating in a new form in 1956, the 502nd Infantry has served in the Vietnam War, the Persian Gulf War, Iraq War, War in Afghanistan, and Operation Inherent Resolve in Iraq. Since 1974, the regiment has been classified as an Air Assault unit. Currently, its 1st and 2nd battalions are active. Both battalions are assigned to the 2nd Brigade Combat Team, 101st Airborne Division.

The 101st Airborne Division (Air Assault) ("Screaming Eagles") is a light infantry division of the United States Army that specializes in air assault operations. It can plan, coordinate, and execute multiple battalion-size air assault operations to seize terrain. These operations can be conducted by mobile teams covering large distances, fighting behind enemy lines, and working in austere environments with limited or degraded infrastructure. It was active in, for example, foreign internal defense and counterterrorism operations in Iraq, in Afghanistan in 2015–2016, and in Syria, as part of Operation Inherent Resolve in 2018–2021.