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Siege of Deir ez-Zor (2014-17)

Siege of Deir ez-Zor (2014–17)
Part of the Syrian Civil War and the
Russian military intervention in Syria
Deir ez-Zor clashes (2017).svg
The situation in Deir ez-Zor on 12 September 2017

     Syrian Government control      Syrian Democratic Forces control

     Islamic State of Iraq and the Levant control
Date 14 July 2014 – 10 September 2017
(3 years, 1 month, 3 weeks and 6 days)
Location Deir ez-Zor, Deir ez-Zor Governorate, Syria
Status

Siege broken by the SAA and allies

  • ISIL besieges Syrian Government forces since July 2014 (after expelling Syrian rebel forces from the province)
  • ISIL forces split the Syrian Government-held Deir ez-Zor pocket in January 2017
  • Syrian government forces reach the Brigade 137 base thus meeting with besieged army forces
  • Siege of government-held airbase ends on 9 September 2017, with all surrounding points recaptured by 10 September
Belligerents
 Syria
Hezbollah
PMF-affiliated militias
 Russia (since Sep. 2015)		  Islamic State of Iraq and the Levant (ISIL)
Commanders and leaders

Syria Issam Zahreddine
(Republican Guard)
Syria Yarob Zahreddine
(104th Airborne Brigade)
Syria Hassan Mohammad
(17th Division; since July 2016)
Syria Mohammad Khaddour
(17th Division; until July 2016 & returned Jan. 2017)

Syria Mudar Makhlouf
(Military Intelligence militia commander)

Islamic State of Iraq and the Levant Gulmurod Khalimov
(ISIL war minister)
Islamic State of Iraq and the Levant Abu Khadijah al-Masri †
(ISIL Governor of Deir ez-Zor)
Islamic State of Iraq and the Levant Amer al-Rafdan
(ISIL top commander)
Islamic State of Iraq and the Levant Abu Hamza al-Ansari †
(ISIL Deir ez-Zor emir)
Islamic State of Iraq and the Levant Abu al Faruq †
(ISIL Deir ez-Zor commander)
Islamic State of Iraq and the Levant Abu Jandal al-Kuwaiti †
(ISIL top commander)

Islamic State of Iraq and the Levant Abu Hadhefah al-Maghrabi †
(ISIL field commander)
Units involved

Syrian Armed Forces

Military Intelligence Directorate

Russian Armed Forces (since Oct. 2015)

Islamic State of Iraq and the Levant Military of ISIL

  • Wilayat Deir ez-Zor
Strength
4,000–5,000 (Besieged, pro-gov. claim)
50,000 (Relief force, pro-government claim) 		7,000–14,000 (pro-gov. claim)
Casualties and losses
460–484+ killed 1,430–1,869+ killed
329–500+ civilians killed, ~400 civilians kidnapped

     Syrian Government control      Syrian Democratic Forces control

Siege broken by the SAA and allies

Syria Issam Zahreddine
(Republican Guard)
Syria Yarob Zahreddine
(104th Airborne Brigade)
Syria Hassan Mohammad
(17th Division; since July 2016)
Syria Mohammad Khaddour
(17th Division; until July 2016 & returned Jan. 2017)


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