| Immediate Response Force | |
|---|---|
 Paratroopers assigned to the Immediate Response Force make their way to a U.S. Air Force transport during an emergency deployment in January 2020 | |
| Allegiance |  United States |
| Type | Rapid deployment force |
The Immediate Response Force (IRF) is a rapid deployment force jointly maintained by the United States Army and United States Air Force, which is capable of deploying worldwide within 18 hours of notification.
By 1980, the United States formed the Rapid Deployment Joint Task Force (RDJTF) as a rapid reaction force under the U.S. Readiness Command. Composed of contingently assigned units from the United States Army, United States Air Force, United States Navy, and United States Marine Corps, its mandate was to rapidly deploy to confront worldwide threats to American interests. With the passage of the 1986 Goldwater-Nichols Act, the relevance of a force with planet-wide responsibilities became less apparent and the RDJTF was deactivated. [1]
In the 2000s, the Global Response Force (GRF) was created as a pooled reserve of CONUS-based military assets that could be used to rapidly reinforce one of the Unified Combatant Commands in the event of an emergent threat to American interests within a command's geographic area of responsibility. [1] It was subsequently replaced with the Immediate Response Force.
The IRF's first emergency deployment occurred in January 2020 and consisted of the 1st Brigade Combat Team, 82nd Airborne Division plus supporting Air Force assets. The deployment was to the Middle East and was in response to a prior attack on the U.S. embassy in Iraq. [2] In June 2020, one infantry battalion of the IRF deployed to Fort Belvoir in response to riots in Washington, D.C. The unit remained on standby until dismissed by Secretary of Defense Mark Esper. [3] The IRF's 1st Brigade Combat Team, 82nd Airborne Division was deployed to Afghanistan during Operation Allies Refuge in August 2021. [4]
Elements of the 82nd Airborne, which makes up the core of the IRF, were mobilized and deployed to eastern Europe in support of NATO during the 2021–2022 Russo-Ukrainian crisis. [5]
The IRF is built around a Brigade Combat Team of the 82nd Airborne Division. A rotating battalion of the brigade, along with Air Force Air Mobility Command assets, is kept at a high alert level to allow it to undertake an airborne deployment on 18 hours notice with no prior warning. [2] [6] This initial "entry force" of the IRF is designed to be followed by additional battalions within a period of days. [7]
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. Its unique battlefield mobility and high level of training have kept it in the vanguard of U.S. land combat forces in recent conflicts: 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.
The 82nd Airborne Division is an airborne infantry division of the United States Army specializing in parachute assault operations into hostile areas with a U.S. Department of Defense mandate to be "on-call to fight any time, anywhere" at "the knife's edge of technology and readiness." Primarily based at Fort Liberty, North Carolina, the 82nd Airborne Division is part of the XVIII Airborne Corps. The 82nd Airborne Division is the U.S. Army's most strategically mobile division.
The XVIII Airborne Corps is a corps of the United States Army that has been in existence since 1942 and saw extensive service during World War II. The corps is designed for rapid deployment anywhere in the world and is referred to as "America's Contingency Corps." Its headquarters are at Fort Liberty, North Carolina.
Operation Golden Pheasant was an emergency deployment of U.S. troops to Honduras in 1988, in response to Nicaraguan attacks on Contra logistics in Honduras.
A rapid reaction force / rapid response force (RRF), quick reaction force / quick response force (QRF), immediate reaction force (IRF), rapid deployment force (RDF) or quick maneuver force (QMF) is a military or police unit capable of responding to emergencies in a very short time frame.
The NATO Response Force (NRF) is a high-readiness NATO rapid deployment force comprising land, sea, air, and special forces units capable of being deployed quickly within short notice. The NRF currently comprises up to 40,000 troops, with plans to increase its manpower to over 300,000 troops. Its forces include units from several non-NATO member partners, including Sweden, Ukraine, and Georgia.
The Rapid Deployment Joint Task Force (RDJTF) is an inactive United States Department of Defense Joint Task Force. It was first envisioned as a three-division force in 1979 as the Rapid Deployment Force (RDF), a highly mobile rapid deployment force that could be rapidly moved to locations outside the normal overseas deployments in Europe and Korea. Its charter was expanded and greatly strengthened in 1980 as the RDJTF. It was inactivated in 1983, and re-organized as the United States Central Command (USCENTCOM).
The 508th Infantry Regiment is an airborne infantry regiment of the United States Army, first formed in October 1942 during World War II. The 508th is a parent regiment under the U.S. Army Regimental System, and two battalions from the regiment are currently active: the 1st Battalion, 508th Parachute Infantry Regiment is assigned to the 3rd Brigade Combat Team, 82nd Airborne Division, and the 2nd Battalion, 508th Parachute Infantry Regiment is assigned to the 2nd Brigade Combat Team, 82nd Airborne Division. The regiment served in combat during World War II, and regimental elements have served in combat in the Dominican Republic, Vietnam, Grenada, Panama, Iraq and Afghanistan.
The 505th Parachute Infantry Regiment, originally the 505th Infantry Regiment, is an airborne infantry regiment of the United States Army, one of four infantry regiments of the 82nd Airborne Division of the United States Army, with a long and distinguished history.
The 504th Infantry Regiment, originally the 504th Parachute Infantry Regiment, 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.
The 327th Infantry Regiment is an infantry regiment of the 101st Airborne Division of the United States Army. During World War II, the 327th was a glider-borne regiment of the 101st Airborne Division. It fought during World War I as part of the 82nd Division. It has also been deployed in the Vietnam War, Gulf War, and most recently to Iraq and Afghanistan. The song "Glider Rider" describes (humorously) some of the slights that glider-borne troops felt they received from the Army during World War II; though the regiment's public fame rose with the 1949 movie Battleground about the Siege of Bastogne in late 1944.
The 1st Battalion, 320th Field Artillery Regiment is the field artillery battalion assigned to the 2nd Brigade Combat Team, 101st Airborne Division. The battalion has been assigned to the 82nd Airborne Division, 11th Airborne Division and 101st Airborne Division. The battalion has participated in World War I, World War II, Operation Power Pack, Operation Urgent Fury, Operation Desert Storm, Operation Iraqi Freedom, Operation Enduring Freedom, and Operation Inherent Resolve.
The 501st Infantry Regiment, previously the 501st Parachute Infantry Regiment and 501st Airborne Infantry Regiment, is an airborne forces regiment of the United States Army with a long history, having served in World War II and the Vietnam War, both as part of the 101st Airborne Division, as well as the War in Afghanistan. It is the first airborne unit by designation in the United States Armed Forces. Its 1st Battalion is assigned to the 2nd Infantry Brigade Combat Team (Airborne), 11th Airborne Division, located at Fort Richardson, Alaska. Its 2nd Battalion is assigned to the 1st Brigade Combat Team, 82nd Airborne Division, located at Fort Liberty, North Carolina.
Volney Frank Warner was a United States Army four-star general who served as Commander-in-Chief, United States Readiness Command (USCINCRED) from 1979 to 1981.
The 82nd Airborne Division Sustainment Brigade is a sustainment brigade of the United States Army based at Fort Liberty, North Carolina. It provides logistical support to and is part of 82nd Airborne Division.
The 2nd Infantry Brigade Combat Team (Airborne), 11th Airborne Division is an airborne infantry brigade combat team (BCT) of the United States Army. The unit is stationed at Joint Base Elmendorf-Richardson in Anchorage, Alaska and is the only airborne brigade combat team in the Pacific Theater. It is also the newest airborne Infantry BCT and one of only five in the United States Army; the others are the three Infantry BCTs of the 82nd Airborne Division and the 173rd Airborne Brigade.
Train Advise Assist Command – East was a multinational military formation, part of NATO's Resolute Support Mission within Afghanistan. Until 2014 it was designated Regional Command East, part of the International Security Assistance Force (ISAF). The United States Army provided the force headquarters. The command headquarters was located in Laghman Province.
The 173rd Airborne Brigade is an airborne infantry brigade combat team (IBCT) of the United States Army based in Vicenza, Italy. It is the United States European Command's conventional airborne strategic response force for Europe.
Operation Atlantic Resolve, refers to military activities in response to Russian operations in Ukraine, mainly the War in Donbass. It was funded under the European Deterrence Initiative. In the wake of Russia's 2014 invasion of Ukraine, the U.S. and the U.K. took several immediate steps to enhance the deterrence posture along the eastern flank of the North Atlantic Treaty Organization (NATO), including augmenting the air, ground and naval presence in the region, and enhancing previously scheduled exercises.
The 4th Brigade Combat Team, 82nd Airborne Division is an inactive Airborne Brigade of the United States Army. The brigade was active from 1968-1969, and from 2006-2014. The brigade conducted three rotations to Afghanistan, in 2007 and 2008, 2009 and 2010, and 2012. The brigade's two infantry battalions deployed for a fourth time in 2013-2014, and became part of other BCTs in the division upon their redeployment.