Operation Inherent Resolve

Operation Inherent Resolve (OIR) is the United States military's operational name for the international war against the Islamic State (IS), including both a campaign in Iraq and a campaign in Syria, with a closely related campaign in Libya. Through 18 September 2018, the U.S. Army's III Armored Corps was responsible for Combined Joint Task Force – Operation Inherent Resolve (CJTF—OIR) and were replaced by the XVIII Airborne Corps. The campaign is primarily waged by American and British forces in support of local allies, most prominently the Iraqi security forces and Syrian Democratic Forces (SDF). Combat ground troops, mostly special forces, infantry, and artillery have also been deployed, especially in Iraq. Of the airstrikes, 70% have been conducted by the military of the United States, 20% by the United Kingdom and the remaining 10% being carried out by France, Turkey, Canada, the Netherlands, Denmark, Belgium, Saudi Arabia, the United Arab Emirates, Australia and Jordan.

Operation Inherent Resolve
Part of the international military intervention against the Islamic State and the War on terror

U.S. Navy F/A-18F Super Hornets of VFA-22 take off from USS Carl Vinson to support U.S. efforts for Operation Inherent Resolve in October 2014.
Date15 June 2014 – present
(9 years and 8 months)
  • Iraq: 15 June 2014 – 9 December 2021
  • Syria: 22 September 2014 – present
  • Libya: 13 November 2015 – 30 October 2019
Location
Status

Ongoing

  • Territorial defeat of ISIL in Iraq on 9 December 2017
  • Territorial defeat of ISIL in Syria on 23 March 2019
  • ISIL defeated in Libya
  • 110,000 square kilometers containing 7.7 million people captured from the Islamic State by U.S.-allied ground forces
Belligerents

 United States

 Islamic State


al-Qaeda

Turkistan Islamic Party


Islamic Front (2013-2015)

Syrian Salvation Government (2017-present)

Commanders and leaders

Joe Biden
(President, 2021-present)
Donald Trump (President, 2017–2021)
Barack Obama (President, 2009–2017)
General Lloyd Austin (CENTCOM Commander, 2014–2016)
(Secretary of Defense, 2021–present)

Mark Esper (Secretary of Defense, 2019 –2020)
James Mattis (Secretary of Defense, 2017 – 2018)
Ashton Carter (Secretary of Defense, 2015–2017)
Chuck Hagel (Secretary of Defense, 2014–2015)
General Kenneth F. McKenzie Jr. (CENTCOM Commander, 2019–present)
General Joseph Votel (CENTCOM Commander, 2016 – 2019)
Lieutenant General Robert P. White
Commanding General Combined Joint Task Force - Operation Inherent Resolve, 2019–2020
Major General Kevin M. Copsey
(Deputy Commander-Stability CJTF-OIR)
Major General Alexus G. Grynkewich
(Deputy Commander-Operations and Intelligence CJTF-OIR)
Major General Matthew McFarlane (Commander of CJTF-OIR, 2022–2023)
Major General Joel ‘JB’ Vowell (Commander of CJTF-OIR, 2023–present)

Abu Ibrahim al-Hashimi al-Qurashi  (Former leader of IS)
Abu Bakr al-Baghdadi  (Former leader of IS)
Abu Alaa Afri 
(Deputy Leader of IS)
Abu Mohammad al-Adnani  (Spokesperson)
Abu Ayman al-Iraqi  (Head of Military Shura)
Abu Muslim al-Turkmani  (Deputy Leader, Iraq)
Abu Ali al-Anbari  (Deputy Leader, Syria)
Abu Omar al-Shishani  (Field commander in Syria)


Abu Khayr al-Masri  (al-Qaeda deputy leader)
Abu Mohammad al-Julani (Leader of the al-Nusra Front))
Abu Humam al-Shami 
(al-Nusra Military Chief and Leader of Hurras al-Din)
Mohammed Islambouli (Leader of Khorasan)
Muhsin al-Fadhli  (Leader of Khorasan)
David Drugeon  (chief bombmaker)


Abu Yahia al-Hamawi (Emir of Ahrar al-Sham (2015–2017))
Abu Jaber Shaykh (Emir of Ahrar al-Sham (2014-2015); Emir of Tahrir al-Sham (2017))

Abu Mohammad al-Julani (Emir of Tahrir al-Sham (2017–present))
Units involved

Elements of:

Military of IS

Strength
United States:

Islamic State of Iraq and the Levant:

  • 9,000 to 18,000 (January 2015)
  • 20,000 to 200,000 (peak, late 2014)
  • 3 MiG-21 or MiG-23 aircraft
  • At least 600 tanks
  • At least 5 drones

al-Qaeda:

  • Khorasan: 50
  • Jund al-Aqsa: 2,100

Islamic Front

  • Ahrar al-Sham: 26,000–30,000+

Syrian Salvation Government

  • Tahrir al-Sham: 50,000+
Casualties and losses

 United States

  • 23 hostile deaths
  • 89 non-hostile Deaths
  • 364  (WIA)
  • 18 civilians killed
    (5 executed  and 1 unknown)
  • 1 F-16 crashed and 1 F-15 damaged
  • 2 helicopters lost (Ch 53 Sea Stallion)
  • 4 MQ-1 Predator drones shot down

Islamic State of Iraq and the Levant:

  • 80,000+ killed by American and allied airstrikes
  • 32,000+ targets destroyed or damaged (as of 30 September 2016)
    • 164 tanks
    • 388 HMMWVs
    • 2,638 pieces of oil infrastructure
    • 1,000+ fuel tanker trucks
    • 2,000+ pick-up trucks, VBIEDs, and other vehicles

(per coalition)


al-Qaeda:

  • 298+ killed

Islamic Front

  • Ahrar ash-Sham:

3 killed
Syrian Salvation Government:

  • Tahrir al-Sham:
    6 killed

Tens of thousands of civilians killed by IS (per Iraqi Body Count and SOHR)
Between 8,214 and 13,125 civilians killed by Coalition airstrikes in Syria and Iraq (per Airwars)
1,335 civilians killed by Coalition Operations (per Coalition)

Over 970,000 civilians in Iraq and Syria displaced, or fled to Turkey and other countries

According to the Pentagon, by March 2019, the day of the territorial defeat in Syria of IS, CJTF-OIR and its partner forces had liberated nearly 110,000 square kilometers (42,471 square miles) of land and 7.7 million people from IS, the vast majority of the self-proclaimed caliphate's territory and subjects. By October 2017, around the time of IS's territorial defeat in Iraq, CJTF-OIR claimed that around 80,000 IS militants had been killed by it and its allies (excluding those targeted by Russian and Syrian Air Force strikes). By the end of August 2019, it had conducted 34,573 strikes. Tens of thousands more were killed by partner forces on the ground (the SDF alone claimed to have killed 25,336 IS fighters by the end of 2017).

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