Deir ez-Zor Governorate campaign

The Deir ez-Zor Governorate campaign of the Syrian civil war consists of several battles and offensives fought across the governorate of Syria:
 * Deir ez-Zor clashes (2011–14)
 * 2012 Deir ez-Zor bombing
 * Hatla massacre
 * Siege of Deir ez-Zor (2014–17)
 * Deir ez-Zor offensive (April–July 2014)
 * Deir ez-Zor offensive (December 2014)
 * Deir ez-Zor offensive (January 2016)
 * September 2016 Deir ez-Zor air raid
 * Deir ez-Zor offensive (January–February 2017)
 * Central Syria campaign (2017)
 * 2017 Deir ez-Zor missile strike
 * Battle of Deir ez-Zor (September–November 2017)
 * Raqqa campaign (2016–2017): The SDF first enter Deir ez-Zor Governorate.
 * Deir ez-Zor offensive (September 2017–present)
 * Battle of Khasham
 * Eastern Syria campaign (September–December 2017)
 * 2017 Euphrates Crossing offensive
 * 2017 Mayadin offensive
 * 2017 Abu Kamal offensive
 * Deir ez-Zor Governorate clashes (April 2018)
 * Deir ez-Zor offensive (May–June 2018)

Pro-Government forces
 Syrian government  Hezbollah 🇷🇺 Russia (since 2015) 🇮🇷 Iran (since 2013)  PMF-affiliated militias 🇮🇶 Iraq (since 2017, against ISIS only) Other armed groups:
 * Syrian Armed Forces
 * Syrian Army
 * 1st Armoured Division
 * 3rd Armoured Division
 * Qalamoun Shield Forces
 * 4th Armoured Division
 * 38th Brigade
 * 5th Corps
 * ISIS Hunters
 * 17th Division
 * 18th Armoured Division
 * 137th Brigade
 * Republican Guard
 * 104th Brigade
 * 800th Regiment
 * Tiger Forces
 * Syrian Air Force
 * National Defence Forces
 * Baqir Brigade
 * Lions of Hussein
 * Military Intelligence Directorate
 * Military Security Shield Forces
 * Forces of the Fighters of the Tribes
 * Lebanese Hezbollah
 * Radwan Force
 * Syrian Hezbollah
 * Imam Mahdi Scouts from Nubl
 * Hezbollah Rocket Division
 * Russian Armed Forces
 * 29th Army
 * 200th Artillery Brigade
 * Special forces
 * Russian Aerospace Forces
 * Wagner Group
 * 5 Storm unit
 * Wagner Group
 * 5 Storm unit
 * 5 Storm unit
 * Iranian Armed Forces
 * Islamic Revolutionary Guard Corps
 * Aerospace Force of the Islamic Revolutionary Guard Corps
 * Quds Force
 * Kata'ib al-Imam Ali
 * Harakat Hezbollah al-Nujaba
 * 12th Mechanized Brigade
 * Kata'ib Sayyid al-Shuhada
 * Kata'ib Hezbollah
 * Asa'ib Ahl al-Haq
 * Kafeel Zaynab Brigade
 * Iraqi Air Force
 * Shabiha (2011–2012, merged into NDF)
 * Liwa Abu al-Fadhal al-Abbas (2011–14, rebel claim)
 * Foreign Shia groups
 * Liwa Fatemiyoun
 * Liwa Zainebiyoun
 * Syrian Resistance
 * Falcons of the Jazira and Euphrates
 * Palestinian groups
 * Al-Quds Brigade
 * Galilee Forces
 * Fatah al-Intifada
 * Free Palestine Movement
 * Sootoro
 * Allied local tribes
 * Al-Shaitat
 * Al-Baggara