Military Wiki
Syrian Civil War inter-rebel conflict
Part of the Syrian Civil War
Date2 January 2014 – ongoing
(8 years, 4 months, 3 weeks and 5 days)
LocationNorth and east Syria


  • ISIS captures much of Ar-Raqqah province,[11] as well as 20 towns in Aleppo province[12][13] and Markadah in Hasakah province
  • ISIS captures 95–98% Deir ez-Zor province[14]
  • ISIS fully withdraws from Idlib and Latakia governorates and almost completely from the northwest of the Aleppo governorate
  • Local Suqour al-Sham brigade-ISIS truce in Hama

SyrianNationalCoalitionOfficialLogo.svg National Coalition

Other rebels:


 Islamic State of Iraq and the Levant
 • Dawoud Brigade[8]
Jund al-Aqsa[9] (formerly)[10]
Commanders and leaders
Abu Mohammad al-Jawlani
(Al-Nusra Front leader)
Zahran Alloush
(Islamic Front Military leader)
Ahmed Abu Issa
(Islamic Front leader)
Brig. Gen. Abdul-Ilah al-Bashir
(FSA Chief of Staff)
Jamal Maarouf
(SRF leader)
Adnan Bakour[15]
(Al-Tawhid Brigade leader)
Abu Hussein al-Dik[15]
(Suqour al-Sham Brigade leader)
Abu Khaled al-Suri[16]
(Ahrar ash-Sham senior leader)
Abu Muhammed al Ansari
(Al-Nusra Emir of Idlib province)
Abu Bakr al-Baghdadi
Abu Omar al-Shishani
Sameer Abid Mohammed al-Halefawi[17]
(Senior ISIS leader)
Abu Baraa al-Jazairi
(Emir of Saraqeb)[18]
Abu Dajana
(Emir of Deir al-Zor)
Abu Mohammad Al-Massri
(Emir of Manbij)
Units involved
Syria Farouq Brigades
Syria Liwa Thuwwar al-Raqqa[19]
Syria Ahfad al-Rasul Brigade[20]
Syria Northern Storm Brigade[21]
Flag of the Islamic Front (Syria) (Black).svg Ahrar ash-Sham[22]
Flag of the Islamic Front (Syria) (Black).svg Al-Tawhid Brigade[23]
Flag of the Islamic Front (Syria) (Black).svg Suqour al-Sham[23]
Flag of the Islamic Front (Syria) (Black).svg Liwa al-Haqq[23]
File:Army of Mujahedeen logo.png 19th Division[24]
 Northern ISIL Units
FSA: 40,000-50,000
Islamic Front: 40,000-60,000
Army of Mujahedeen: 10,000-15,000
Al-Nusra Front: 5,000-6,000
Islamic State: 50,000
Casualties and losses
2,764 killed[25] 2,196 killed[25]
605 civilians killed[25]
76 unidentified killed[25]
an additional 1,200 combatants and 150 civilians estimated killed[25]
Total: 5,641–6,991 killed[25]

Inter-rebel conflict started during the Syrian Civil War after fighting erupted between the Syrian opposition groups: Free Syrian Army (FSA), the Army of Mujahedeen and the Islamic Front, and the Islamic State.[5] In early January 2014, serious clashes between the groups erupted in the north of the country. Opposition groups near Aleppo attacked militants from the ISIS in two areas, al-Atareb and Andana, which are both strongholds of the fundamentalist Sunni organisation.[26] Despite the conflict between ISIS and other rebels, one faction of ISIS has cooperated with the Al Nusra Front and the Green Battalion (a group of Saudi fighters) to combat Hezbollah in the Qalamoun region.[27]


Tension between moderate rebels and ISIS had been high since ISIS attacked and captured the FSA-held border town of Azaz[28] in Northern Aleppo and the nearby Bab al-Hawa border crossing with Turkey, which serves as an important supply route for rebel forces; this took place between 18–23 September 2013.[29] The conflict was renewed over Azaz in early October[30] and in late November ISIS captured the border town of Atme from an FSA brigade.[31] On 31 December 2013, the body of doctor Hussein Suleiman was handed over in a prisoner swap between ISIS and rival rebel forces. Suleiman was tortured and died in ISIS custody.[32] The opposition National Coalition and activists accused ISIS of serving the interests of the Syrian government by tarnishing the image of their uprising.[33]

Open warfare

Start of the rebel offensive, ISIS counter-offensive, and mutual advances

On the evening of 2 January 2014, ISIS forces attacked the rebel-held town of Atarib, where they were accused of two recent incidents of killing or kidnapping mainstream rebel commanders.[34] On 3 January, several civilian protests, counting hundreds of people, were organised against ISIS and to commemorate the death of Suleiman across Aleppo Governorate. In the Idlib village of Kafr Takharim ISIS opened fire on the protesters.[32] There were no reports of casualties. In response to the attack on the protesters, two newly formed Islamist rebel groups of the FSA attacked ISIS positions in more than half a dozen locations in the governorates of Aleppo and Idlib.[34]

Rebels in Atarib managed to repel the ISIS attack on the town, after which the ISIS fighters were surrounded, resulting in the capture of a Tunisian commander, Abu Saber al-Tunisi. It was unclear if he was summarily executed by the rebels. 42 ISIS fighters were wounded in the fighting in Atarib, while an opposition media activist was killed while covering the clashes.[32] There were unconfirmed reports of rebels arresting ISIS members in various towns and villages in Aleppo Governorate and Idlib Governorate. Fighting raged in the Idlib village of Maarrat Misrin, while in the village of Kafr Nabl rebel forces surrounded an ISIS facility, giving its fighters 24 hours to surrender. Meanwhile, the rebel Islamic Front,[34] which was also engaged in the fighting against ISIS,[32] sent reinforcements to the ISIS-held town of Azaz.[34]

On 4 January, ISIS were reported to be rounding up "suspect activists" in both Saraqeb and Kafr Nabl.[1] In the Harem area, ISIS forces executed 30 captives, including civilians, after their base was surrounded by rebel forces. In Aleppo, fighting raged throughout the province, with rebel forces making advances against ISIS. FSA units were reportedly making progress in Atarib, but ISIS was surrounding the town and shelling it.[1]

ISIS was also on the offensive, attacking rebel positions and ambushing their forces in attacks that left 24 rebels dead. One attack included a car bomb.[35] At this point, ISIS gave a 24-hour ultimatum to rebel forces attacking them, saying that they would withdraw from Aleppo, allowing government forces to enter rebel territory, if they did not stop their attacks. The rebels reiterated an earlier call on ISIS fighters to defect to their side.[36]

On 5 January, rebels captured an ISIS base in Manbij after heavy fighting.[37] Clashes had also erupted in the town of Tabqa, in Ar-Raqqah Governorate, and fighting spread to the central Hama Governorate where ISIS killed seven rebel fighters.[35] During the fighting in Manbij, ISIS used car bombs to defend its territory.[37] Meanwhile, ISIS forces retreated from al-Dana and Atme in Idlib Governorate and started heading in the direction of Aleppo. Their positions were taken over by the Al-Nusra Front and Ahrar ash-Sham groups, in a possible deal to avoid larger confrontations.[38] ISIS also retreated from Darat Izza,[35] while they managed to retain control of Saraqeb and Kafr Zita. ISIS reinforcements were dispatched from Ar-Raqqah to Aleppo.[39] Overall, 66 combatants, including 11 ISIS fighters, were killed during the day.[40]

According to the opposition Sham News Network, by this point, rebels had captured more than 80% of the ISIS-held Idlib countryside and 65% of ISIS territory in Aleppo and its countryside.[41]

By 6 January, rebels had besieged ISIS in its stronghold of Ar-Raqqah. During the fighting, rebels released 50 prisoners from ISIS custody. Among those rescued was a Turkish news photographer who had been kidnapped since December 2013. 10 Syrian Kurdish prisoners also managed to escape.[42] 70 ISIS and 20 rebel fighters had been killed since the rebel attack on Ar-Raqqah started, according to a rebel officer who expected that it would take them at least a week to drive the al-Qaida linked militants out of the city. Meanwhile, ISIS detonated a car bomb by a rebel checkpoint near the town of Darkush, 20 rebel fighters were killed in the suicide attack on the checkpoint.[43] ISIS fighters retreated from Kafr Zita,[44] In Jarablus, a mile and a half from the Turkish-Syrian border, there were conflicting reports with the Islamic Front stating they had overrun the local ISIS headquarters, with the ISIS denying that and insisting that the group was holding fast.[45]

On 7 January, it was confirmed that 34 foreign ISIS and Jund al-Aqsa fighters had been executed in the previous few days by rebels in the Jabal al-Zawiya area.[46] ISIS retreated from al-Mayadeen in Deir ez-Zor Governorate, without any fighting with rebel forces.[47] East of Rastan, in Homs Governorate, ISIS attacked a rebel headquarters killing 15 rebel fighters.[48] During the day, it was revealed that the previous evening ISIS executed up to 50 prisoners in the Qadi al-Askar district of Aleppo. The dead included media activists, relief workers and other civilians.[49] According to the opposition SOHR, 42 people were executed, including 21 rebel fighters and five media activists.[50]

On 8 January, rebels captured the ISIS headquarters in Aleppo city at the Children's hospital in the Qadi Askar district. ISIS forces lost control over opposition-held areas of the city and retreated to Al-Inzarat on the northeastern outskirts of Aleppo. 300 hostages held by the radical jihadists were set free.[51] In Ar-Raqqah, the hospital was abandoned, bodies were laying in the central square and there was no power or water leaving the city "completely paralyzed", according to an opposition activist. At this point, ISIS controlled two key routes out of Raqqa: to the east toward the Iraqi border and also the road north to the Turkish frontier.[52] The head of the Al Nusra Front, Abu Mohammad al-Golani, confirmed that fighting had taken place between his organization and ISIS and called for mediation and an end to the "infighting".[53] Late in the day, ISIS started a counter-attack as it launched car bomb assaults targeting opposition checkpoints. Three attacks took place in Al-Bab, Hreitan and Jarabulus in Aleppo Governorate, Observatory director Rami Abdel Rahman told AFP. He said similar overnight attacks took place in Aleppo Governorate, while one occurred in Mayadin in the eastern Deir ez-Zor Governorate. The attack in Al-Bab killed nine people.[54]

On 9 January, ISIS sent reinforcements from Deir ez-Zor to back its fighters in the Aleppo countryside. According to local residents, ISIS was preparing many suicide attacks in retaliation for the rebel attacks, and that their commanders were wearing explosive belts all the time. Dutch journalist Lex Runderkamp told Dutch news program NOS that the ISIS reinforcement convoy was 1,300 men strong, including ISIS special forces from Iraq.[55] In Ar-Raqqah, the rebels took control of the political intelligence building, which was located 400 meters from the main ISIS headquarters. However, ISIS still controlled the bridges leading into the city, which left people using boats to get into Ar-Raqqah,[54] and later in the evening ISIS forces seized the Mashlab district and an Al-Nusra Front base in the city.[56] Clashes erupted between ISIS and a rebel brigade by the Castillo road, in Aleppo Governorate. The rebels blocked an ISIS supply route between al-Jandoul and Castillo. Meanwhile, Islamist rebel brigades sent reinforcements to the Bab al-Salama border crossing, at Azaz, which is primarily controlled by ISIS.[57] In Idlib province, ISIS opened fire on a demonstration in Kafartkharim and besieged several field clinics, and stormed one of them, searching for rebels injured earlier in the morning during clashes in Atarib.[58]

According to SOHR, local ISIS forces signed a truce with the Islamic Front and several independent Islamist rebel units in Al-Hasakah Governorate. They agreed with the establishment of a single military command center and legal authority for the area.[59]

On 10 January, ISIS managed to push back rebel forces on the eastern approaches to Ar-Raqqah. ISIS forces also killed 20 rebel fighters in fighting in the town of Al-Bab in Aleppo province,[60] and managed to capture wheat silos and mills just outside the town.[61] ISIS commander Abu Omar al-Shishani entered the town with a convoy of 30 vehicles and troops after he lifted the ISIS's siege of Deir-az-Zor airport.[62]

On 11 January, rebels moved a convoy including tanks and technicals to Saraqeb in preparation to push ISIS out.[63] Heavy fighting erupted and it was reported that rebels took over most of the town, and besieged hundreds of ISIS fighters. Earlier in the day, five rebels were killed on the outskirts of Saraqeb when their car hit a bomb.[64] Meanwhile, ISIS forces managed to capture the border town of Tal Abyad, while in Ar-Raqqah ISIS fighters captured a rebel checkpoint and the train station.[65] ISIS fighters also dumped the corpses of dozens of their foes at the village of Jazra, to the west of Ar-Raqqah. Dozens of bodies of ISIS fighters were also reportedly in Ar-Raqqah's hospital.[63] Rebels managed to regain territory lost in previous days in Aleppo province and were defending against ISIS counterattacks. 20 rebels were killed in fighting in the town of Anadan,[66] while 30 rebels were killed in three days of fighting in the village of al-Tiba, northeast of Sekhna.[67]

On 12 January, it was confirmed that rebel forces had captured the eastern part of Saraqeb with the local ISIS commander surrounded with his fighters in the center of the town.[2] Fighting was still continuing in Ar-Raqqah between ISIS and remnants of rebel units, including the Al-Nusra Front,[11] although by this point ISIS had captured much of the city.[68] According to an opposition activist, 95 percent of Ar-Raqqah and its countryside were under ISIS control. ISIS forces had also captured the towns of Hrietan and Basraton in Aleppo province.[11] It was also reported that the bodies of 70 rebels were delivered to Ar-Raqqah's hospital after they were executed by ISIS following their capture of Tal Abyad. Another report put the number of executed prisoners at 100.[69]

On 13 January, it was reported that ISIS had won the battle for of Ar-Raqqah capturing most of the province and the provincial capital.[70] ISIS had also captured Al-Bab[71] and Beza'a, while the rebels were gaining ground in Jarabulus, near the Turkish border.[72] Another mass execution of prisoners was also reported near the village of Kantari, about 80 kilometers north of Ar-Raqqah, when ISIS killed 46 captured fighters of the Ahrar ash-Sham rebel group.[71] 14 rebels were also executed in Homs province[73]

On 14 January, it was reported that rebels captured the villages of Masqan,[74] Kafar Kalbin and Kafra in Aleppo province, while the ISIS has taken full control of Ar-Raqqah city, after the last remaining rebels retreated.[75] Meanwhile, the rebels also captured the prison in Jarablus, releasing 70 prisoners from ISIS custody.[76]

On 15 January, an ISIS car bomb in Jarablus killed 26 people, of which 23 were rebel fighters and three were civilians. Meanwhile, in Saraqeb fighting was continuing and opposition sources reported that the local ISIS commander, a Belgian, was killed. ISIS denied the claim.[18] Between 15 and 17 January, rebels captured Jibreen, Hardntin Kfarrakeshr,[77][78] Sheikh Ali, Aajel, 46th base, Orum al-Sughra and Reef al-Muhandiseen, while the ISIS retreated from the village of Kafarjoum, which holds the largest ISIS arms depots in all of Syria.[79] ISIS also withdrew from Saraqab, burning their vehicles as they retreated, while at the same time ISIS recaptured Jarabulus.[13]

On 20 January, 2 suicide cars exploded at the Bab Al-Hawa border crossing, 16 people including six rebels were killed.[80] The same day, ISIS forces seized control of the Al-Jarah military airport.[80] In Manbij, a large suicide car explosion killed 20 people, including rebels, women, and children[81] By 23 January, ISIS was in full control of Manbij[82] and completely secured Darkush the following day.[83]

On 27 January, it was reported that ISIS senior Commander Sameer Abid Mohammed al-Halefawi (aka Haji Bakr) was killed by rebels in Tal Rifaat, near Azaz,[17] and at least two other ISIS senior commanders were captured at Hreitan. Four ISIS fighters and three rebels were killed in the fighting.[84] ISIS confirmed the death of top ISIS leader Haji Bakr on 2 February.[85]

Al Qaeda breaks links with ISIS and al-Nusra Front joins the fight

On 1 February, ISIS attacked the headquarters of the Liwa al-Tawhid Brigade in Aleppo, killing the brigade commander Adnan Bakour and 15 other rebels[86] at the cost of at least 9 ISIS fighters. The next day, Al-Qaeda distanced itself from ISIS and its actions in Syria.[87]

On 3 February, the Ar-Raqqah Rebels Brigade launched a military operation against ISIS checkpoints and strongholds in Ar-Raqqah.[88] The day before, five ISIS fighters were assassinated in the Ar-Raqqa national hospital.[89]

On 5 February, a local group of Suqour al-Sham brigade in Hama and ISIS signed a truce,[90] It was also reported that The Front of Aleppo Islamic Scholars issued a statement, giving the ISIS fighters in Syria a three-day ultimatum to either return to Iraq or join other armed factions fighting against the Syrian regime.[91]

On 8 February, the Al-Nusra Front and allied rebel factions launched an offensive against the ISIS in the Deir ez-Zor Governorate. It was reported that the ISIS emir of Deir al-Zor, Abu Dajana, was killed in the clashes and the rebels also recaptured facilities in the province.[92] At the same time, 13 foreign ISIS fighters defected in Ar-Raqqa.[93] Between 10 and 12 February, ISIS had almost completely withdrawn from the eastern province of Deir ez-Zor, including the city of Deir ez-Zor.[94]

On 23 February, two ISIS suicide bombers killed a number of rebels in Aleppo, including Abu Khaled al-Suri, who was Al-Qaeda's representative in Syria and top-commander in the rebel group Ahrar ash-Sham.[16] Three days later, the Tunisian ISIS deputy Emir for the Ar-Raqqa province and three other fighters were killed by a roadside bomb, while rebels captured the village of Kafrnaya in Aleppo. It was also reported that ISIS released a rebel commander in Ar-Raqqa.[95]

On 28 February, it was reported that ISIS has begun retreating from the following places in Aleppo province towards Ar-Raqqa: Azaz, Menagh military airport, the Mayer region and the villages of Deir Jamal and Kafin. ISIS has regrouped in particular at their strongholds Jarabulus and Manbij. Azaz was captured by rebels after the ISIS withdrawal.[96]

Ongoing clashes, ISIS retreats from Idlib and Latakia

On 3 March, SOHR reported that ISIS was responsible for the kidnapping of the commander of the rebel “United Front for Southern Damascus” in February 2014.[97]

On 11 March, ISIS massacred at least 22 people, including 12 rebels, after they captured the village of Shuyukh near Jarabulus.[98] During this time, ISIS had also captured the town of Karakozak, in Aleppo province near the Turkish border.[99] The next day, the ISIS emir Abu Mouhammad Al-Massri was assassinated by the FSA affiliated Al-Raqqa Revolutionaries Brigade in the Ar-Raqqa's Tal-Dikan area, near the village of Sarreen.[100]

On 14 March, it was reported that ISIS fully retreated from Idlib and Latakia provinces.[101]

On 16 March, according to local sources a number of foreign ISIS fighters defected to Al-Nusra after they killed their commander. The next day, Al-Nusra and the Islamic Front were able to capture the al-Thalja barrier, resulting in the ISIS withdrawal towards Margada town.[102]

On 27 March, ISIS launched an operation against Al-Nusra and allied forces at the al-Jafra oil field and the Koniko gas factory in Reef Deir Izzor. SOHR confirmed that the ISIS took hold of these facilities,[103] but were forced to withdraw after heavy clashes two days later.[104] On 29 March, ISIS captured the town of Markadah, after the rebels retreated to Al-Sor town in the eastern countryside of Der-Ezzor. At least 35 rebels were reportedly killed by the ISIS in the fighting and many rebels were captured. The SOHR confirmed the death of at least seven ISIS fighters.[105]

ISIS's Deir ez-Zor offensive

On 10 April, ISIS launched a three-pronged assault on rebel positions in and near the border town of Albu Kamal and reportedly took control of parts of the town.[106]

On 11 April, Jabhat al Nusra and Islamic battalions bolstered by reinforcements regained control of Abu Kamal after the ISIS was pushed out of occupied districts in less than a few hours after the takeover. ISIS pulled out to the T2 oil station on the outskirts of the city. Most of its checkpoints in the area were also removed.[107]

On 13 April, fighting in the Kamal area subsided as ISIS retreated to the town of Haseen. Heavy clashes were reported with rebels as ISIS made territorial gains in the north, capturing several villages previously held by the rebels.[108] On 16 April, rebels pulled away from North Deir ez-Zor. The same day, ISIS assassinated al-Nusra Emir in Idlib province, Abu Muhammed al Ansari. Four ISIS fighters were said to have entered his house, assassinating the commander and murdering his entire family. According to the SOHR, al Nusra rebels were alerted clashing with ISIS leaving the entire suicide team dead along with one rebel fighter.[109]

By 26 April, according to rebel source, some 1,500 rebels were engaged in an offensive in Raqqa province, trying to push towards the city of Ar-Raqqa. The same source claimed that the rebels took at least five villages.[110]

From 10 to 11 May, ISIS was said to have gained control of important parts of Eastern Deir ez-Zor province and districts of Deir ez-Zor city from rival rebel forces, opposition sources reported.[111] On 13 May, ISIS reportedly gained control of at least five villages in the northern countryside of Al-Raqqa province after battles with rebels; 14 rebel fighters were reported killed in the clashes.[112] ISIS was said to have executed the military commander of the Al-Raqqa rebel brigade and his nephew near Ayn Issa in Al-Raqqa province.[113]

On 16 May, reports suggested that ISIS executed by beheading in Hama province a prominent brigade commander of the Islamic Front, Abu Miqdaam, who was known for destroying regime tanks.[114][115]

By late May, 3,000 ISIS fighters were involved in the offensive in Deir ez-Zor.[116]

On 22 May, ISIS was reported to have gained control of Al-Kharrat oil terminal in Deir ez-Zor province; 26 Al-Nusra and rebel fighters were killed in the fighting. ISIS was said to have captured five oil stations in the Deir ez-Zor countryside since the beginning of opposition infighting.[117]

On 2 June in Deir Izzor ISIS took full control of Al-Besera while at the same time the rebels counterattacked, reclaiming 16 villages.[118]

On 5 June, ISIS gained control of the entire western countryside of Deir ez-Zor after Al-Nusra forces withdrew following an assault by Chechen and Afghan ISIS fighters.[119] On 8 June, the FSA reportedly assassinated the ISIS emir of Homs.[120] By 10 June, the offensive into Deir ez-Zor had expanded and ISIS had reportedly driven Al-Nusra and aligned militants from nearly all of the province north of the Euphrates.[121]

Since the start of the ISIS offensive in Deir ez-Zor, the pace of defections from the opposition to ISIS had accelerated, most significantly in the town of Al-Muhasan and adjacent villages, where a mass defection by the rebel garrison granted ISIS uncontested control over a key route to the provincial capital.[122]

Over 21 and 22 June, ISIS captured eight towns in the northern part of Aleppo governorate,[123] with the help of American-made Humvees seized in Iraq. Two of the towns were located near the town of Azaz on the border with Turkey.[124]

On 25 June, the local unit of Al-Nusra in Abu Kamal on the Iraqi border pledged loyalty to ISIS.[125]

On 29 June, ISIS executed and publicly crucified 8 rebel fighters in Aleppo province.[126]

On 1 July, ISIS, bolstered by reinforcements from Iraq, routed rebels from Abu Kamal after days of fighting with opposition forces led by Al-Nusra. ISIS began advancing towards Al-Nusra's stronghold, Shuheil, also reported to be the hometown of its leader, Al-Golani.[127]

On 3 July, ISIS took control of the towns of Mayadin and Shuhail in Deir ez-Zor province, after Al-Nusra fighters withdrew,[128] and gained control of Syria's largest oil field, al-Omar in Deir ez-Zor province, after Al-Nusra forces fled the facility.[129] By this point, the entirety of the province with the exception of the provincial capital, its airport, and a few villages had fallen to ISIS.[130] Following this, ISIS captured the villages of Quniya and Buqris, close to the town of Mayadin.[131]

On 14 July, ISIS expelled Nusra and other assorted rebel groups from all rebel-controlled neighborhoods in Deir ez-Zor city.[132] By this stage, SOHR reported that ISIS controlled 95 to 98% of Deir Ez-Zor province.[14]

East Ghouta clashes

On 1 July, clashes erupted between Jaysh al-Islam and ISIS in the Eastern Ghouta town of Medaa. ISIS captured 25 of their fighters and executed an unknown number of them. On 2 July, Zahran Alloush, the Army of Islam's leader, gave an impassioned speech to his followers, deriding ISIS and listing several of their atrocities. On the same day, Army of Islamic claimed to have expelled ISIS from Medaa after a costly battle that led to the deaths of 14 fighters and claimed 15 ISIS casualties.[133]

On 2 July, the rebel militia Islam Army reportedly expelled ISIS fighters from the Ghouta town of Maydaa in Damascus province.[134] One week later, a key commander of Jaysh al-Islam, Abu Mohammad Haroun, was assassinated by IS after his car was destroyed by a roadside bomb in the Ghouta suburbs.[135]

Following the ISIS victory in Deir ez-Zor, it was reported that the entirety of Dawoud Brigade, a thousand strong division of the Jaysh al-Sham defected to ISIS. The defection of Dawud is reported to have bolstered ISIS forces in Raqqa with more than a hundred combat vehicles, at least ten of them tanks.[136]

On 21 July, SOHR reported that Al-Nusra Front seized a town from the Hazzm Movement in Idlib governorate. Therefore, Hazzm Movement said that it would no longer work with Al-Nusra Front.[137]

Aleppo Offensive

On 13 August, it was reported that IS seized control of eight villages and several towns in Aleppo province from rebels, including Turkmen Barah and Akhtarin; the fighting reportedly killed 40 rebel fighters and 12 IS members.[138][139][140]

By 16 August, IS captured around 10 villages and towns and was advancing towards Marea and Aazaz. Fighting raged near Marea, the main base of Islamic Front rebel group, where rebel reinforcements were being sent.[141] During the day, IS forces captured three villages near Marea.[142] Additionally, by 18 August opposition sources had reported the mass defection of the Aleppo-based Khaled Rashed, Green and Tawhid-e-jihad brigades to the Islamic State.[143]

On 24 August, rebels recaptured the villages of Adeyyi and al Dahreyyi.[144] On 27 August it was reported that rebels had started an offensive called Nahrwan Al-Sham to expel IS from the northern and eastern Aleppo countryside; opposition sources claimed that rebels had regained control of several villages and killed 43 IS fighters.[145][146]

On 7 September, the leader of the Syrian Revolutionaries Front, Jamal Maarouf, declared the start of a broader war against the Islamic State; he announced that the intent of the rebels is to clear IS forces from Aleppo, Raqqa and Deir Ezzor provinces.[147]


In the summer of 2014, ISIS began taking over the area south of the Turkish border and then started to besiege the town of Kobanē.[148] Multiple FSA factions, including the Grouping of the Dawn of Freedom Brigades[149] and Liwa Thuwwar al-Raqqa[150] have been involved in defending Kobanê against ISIS. The People's Protection Units have been cooperating with the Free Syrian Army in trying to defend Kobanê.[150]

Attempted mediation

On 19 January, ISIS reached out to other rebel groups in Syria to stop the rebel in-fighting, by posting an audio message online.[151] On 4 April, Al-Qaeda chief Ayman al-Zawahri called on the rival jihadists and rebels to end the infighting, stating that the violence is “sedition”.[152] In early May, Ayman al-Zawahiri again called on ISIS and the Al Nusra Front to stop their fighting. However, fighting continued between the two groups.[153] The Al-Nusra Front issued a statement on 4 May 2014 in which it agreed to stop fighting with ISIS, however, it stated that it will retaliate if ISIS attacks first.[154] In May 2014, ISIS launched an offensive against Al-Nusra and allied groups in Deir ez-Zor Governorate, seizing oil wells and leaving hundreds dead on both sides.[155]

In September 2014, moderate rebels and the Islamic State signed a non-aggression pact in Al-Hajar al-Aswad.[156] However, the report of a truce has been denied by the Islamic Front, the Syria Revolutionaries Front, and other rebel groups.[157]


Between 3 January and 28 June, 5,641–6,991 people had been killed in the inter-rebel fighting, according to the SOHR.[25] By 25 February, ISIS had conducted 34 suicide attacks.[158] On 26 August, the Syrian Network for Human rights reported that since the declaration of the Islamic State on 9 April, 2,691 anti-ISIS rebels and 782 civilians had been killed.[159]


  1. 1.0 1.1 1.2 "Al-Qaeda-linked Isis under attack in northern Syria". BBC. 4 January 2014. Retrieved 10 January 2014. 
  2. 2.0 2.1 2.2 "Syrian opposition and ISIS continue Idlib battle". Asharq Al-Awsat. 12 January 2014. Retrieved 13 January 2014. 
  3. "Syria: al-Nusra Front declares war on ISIS". Al Akhbar English. 26 February 2014. Retrieved 3 March 2014. 
  4. "Al Qaida rebels leave mass grave behind as they desert base in Syria". McClatchy. 6 January 2014. Retrieved 12 January 2014. 
  5. 5.0 5.1 "Factbox: Syria's rebel groups". Reuters. 9 January 2014. Retrieved 12 January 2014. 
  6. "ÖSO'ya verilen silahlar IŞİD’in eline geçti". Yakın Doğu Haber. 30 June 2014. Retrieved 22 September 2014. 
  7. "US Senate Approves Plans To Arm Syrian Rebels As France Begins Airstrikes In Iraq". Vice News. 19 September 2014. Retrieved 22 September 2014. 
  8. "Islamic State advances in Syria's Aleppo province: NGO". AFP. 13 August 2014. Retrieved 13 August 2014. 
  9. "34 jihadists dead after rebel clashes in Syria's Idlib: activists". AFP. 7 January 2014. Retrieved 14 September 2014. 
  10. "The Other Syrian Peace Process". Carnegie Endowment for International Peace. 27 January 2014. Retrieved 14 September 2014. 
  11. 11.0 11.1 11.2 "Group linked to al-Qaeda regains ground in northeast Syria". Reuters. 12 January 2014. Retrieved 12 January 2014. 
  12. Three-sided war helps Syrian army regain ground
  13. 13.0 13.1 Syrian rebels push Qaeda affiliate from northwest stronghold
  14. 14.0 14.1 'Islamic State' expels rivals from Syria city
  15. 15.0 15.1 Al-Qaeda fighters kill Syrian rebel leaders Al-Jazeera, 2 February 2014
  16. 16.0 16.1 "Senior Al-Qaeda figure killed by ISIS". The Daily Star. 24 February 2014. 
  17. 17.0 17.1 "Key Al-Qaida Militant Reportedly Killed in Syria". ABC News. 27 January 2014. Retrieved 28 January 2014. 
  18. 18.0 18.1 Car bomb blamed on al Qaeda kills 26 in north Syrian town
  19. "Syria rebels struggle for control over ISIL-held Raqqa". ARA News. 13 May 2014. Retrieved 16 May 2014. 
  20. "The end of the rebel alliance?". Al Jazeera English. 15 September 2013. Retrieved 19 September 2014. 
  21. "Azaz Northern Storm Brigade". Terrorism Research & Analysis Consortium. Retrieved 25 August 2014. 
  22. "NGO: Syria jihadists kill rebels in bombing". Al Arabiya. 11 January 2014. Retrieved 12 January 2014. 
  23. 23.0 23.1 23.2 "Freedom, Human Rights, Rule of Law: The Goals and Guiding Principles of the Islamic Front and Its Allies". Democratic Revolution, Syrian Style. 17 May 2014. Retrieved 19 September 2014. 
  24. "Syria: Army of the Mujahideen Challenges ISIS Gains". Al Akhbar. 6 January 2014. Retrieved 19 September 2014. 
  25. 25.0 25.1 25.2 25.3 25.4 25.5 25.6 Thousands were killed and were killed during clashes with the Islamic state
  26. "Syrian opposition turns on al-Qaida-affiliated Isis jihadists near Aleppo". The Guardian. 3 January 2014. Retrieved 27 February 2014. 
  27. "ISIS joins other rebels to thwart Syria regime push near Lebanon". McClatchy DC. 4 March 2014. Retrieved 1 April 2014. 
  28. "Al-Qaida militants captured town in northern Syria". Associated Press. 19 September 2013. Retrieved 4 January 2014. 
  29. The Islamic Alliance Emerges,, Sep 27, 2013
  30. "Syrian rebel factions tell al Qaeda groups to withdraw". 3 October 2013. Retrieved 4 January 2014. 
  31. "ISIL captures Syrian town on border with Turkey". World Bulletin. 22 November 2013. Retrieved 4 January 2014. 
  32. 32.0 32.1 32.2 32.3 "Syrian rebels launch fierce offensive against al Qaeda fighters". Reuters. 4 January 2014. Retrieved 4 January 2014. 
  33. "New Syria rebel alliance declares war on Al Qaida". AFP. 4 January 2014. Retrieved 4 January 2014. 
  34. 34.0 34.1 34.2 34.3 "Syria rebels fight back against ISIS". The Daily Star. 4 January 2014. Retrieved 7 January 2014. 
  35. 35.0 35.1 35.2 "Jihadists kill 31 rebels in Syria: monitor". AFP. 5 January 2014. Retrieved 7 January 2014. 
  36. "Syria rebels unite and launch new revolt, against jihadists". AFP. 4 January 2014. Retrieved 29 April 2014. 
  37. 37.0 37.1 "Across parts of northern Syria, rebels battle al-Qaida-linked insurgents". 5 January 2014. Retrieved 5 January 2014. 
  38. "Syrian rebels push al-Qaeda back". Al Arabiya News. 5 January 2014. Retrieved 5 January 2014. 
  39. "Al Qaida fighters pushed from much of northern Syria, but fighting still rages". McClatchy. 5 January 2014. Retrieved 5 January 2014. 
  40. 137 died yesterday, including 93 of the Islamic state and battalion combat
  41. "Al Qaeda-linked group routed in Syrian rebel infighting". Los Angeles Times. 5 January 2014.,0,2285747.story#axzz2pX5mNcca. Retrieved 5 January 2014. 
  42. "Syria rebels lay siege to Qaeda-linked jihadists". AFP. 6 January 2014. Retrieved 6 January 2014. 
  43. 20 fighter spent detonated the car bomb Bdrickosh
  44. Al Qaida rebels leave mass grave behind as they desert base in Syria
  45. "Syrian rebel infighting spreads to stronghold in east". Los Angeles Times. 6 January 2014.,0,3137721.story#axzz2pdF7wWCs. Retrieved 6 January 2014. 
  46. "34 jihadists dead after rebel clashes in Syria's Idlib: activists". AFP. 6 January 2014. Retrieved 7 January 2014. 
  47. Lundquist, Lisa (2014-01-07). "Today In". The Long War Journal. Retrieved 2014-02-10. 
  48. Clashes Athalasalamahtantql to Homs and killed 15 fighters in the vicinity of Rastan
  49. "Al-Qaeda group kills Aleppo prisoners: report". Al Jazeera English. 7 January 2014. Retrieved 10 January 2014. 
  50. "Syria rebels seize al-Qaida base in north". 8 January 2014. Retrieved 8 January 2014. 
  51. "Aleppo free of ISIS control, rebel commander says". NOW News. 8 January 2014. Retrieved 8 January 2014. 
  52. "As Rebels Fight Rebels, Grim Reports From A Syrian City". NPR. 8 January 2014. Retrieved 9 January 2014. 
  53. "Al-Qaeda’s ISIL vows to ‘crush’ Syrian rebels". Zaman Alwsl. 8 January 2014. Retrieved 10 January 2014. 
  54. 54.0 54.1 "Jihadists battle back in north Syria, says monitor". AFP. 9 January 2014. Retrieved 9 January 2014. 
  55. "ISIS send 1300 men towards Aleppo". 9 January 2014. 
  56. "Jihadists advance on Syria's Raqqa". NOW. 10 January 2014. Retrieved 10 January 2014. 
  57. "Clashes in Aleppo province on 9 January". 9 January 2014. 
  58. "Idlib countryside on 9 January". 9 January 2014. 
  59. "Jihadists try to mount rally in eastern Syria to retake territory". dailystar. 10 January 2014. Retrieved 10 January 2014. 
  60. "Al Qaeda group fights back against Syria rebel assault". Reuters. 10 January 2014. Retrieved 10 January 2014. 
  61. "500 Reported Killed In Rebel Infighting In Syria". 11 January 2014. Retrieved 11 January 2014. 
  62. "protest march in Aleppo, 10 January 2014". Reuters. 10 January 2014. Retrieved 10 January 2014. 
  63. 63.0 63.1 "Rebels clash in north Syria, bodies pile up in hospital - monitors". Reuters. 11 January 2014. Retrieved 11 January 2014. 
  64. "NGO: Syria jihadists kill rebels in bombing". Alarabiya. 11 January 2014. Retrieved 11 January 2014. 
  65. "Syrian troops advance on Aleppo area: activists". AFP. 11 January 2014. Retrieved 11 January 2014. 
  66. "Rage grows against both ISIS and rebel leaders". The Daily Star. 11 January 2014. Retrieved 11 January 2014. 
  67. 294 died yesterday, including 210 combat battalions of regular troops and
  68. "Syria conflict: 700 killed in eight days in early January, Syrian Observatory for Human Rights says". ABC. 12 January 2014. Retrieved 12 January 2014. 
  69. "Al Qaeda Syria unit executes dozens of rivals in Raqqa: activists". Reuters. 12 January 2014. Retrieved 13 January 2014. 
  70. "Syria, anti-Assad rebel infighting leaves 700 dead, including civilians". AsiaNews. 13 January 2014.,-anti-Assad-rebel-infighting-leaves-700-dead,-including-civilians-30013.html. Retrieved 13 January 2014. 
  71. 71.0 71.1 "Al-Qaida-Linked Group Ousts Rivals From Syria Town". 13 January 2014. Retrieved 13 January 2014. 
  72. "ISIS jihadists seize 'most' of north Syria town: activists". The Daily Star. 13 January 2014. Retrieved 13 January 2014. 
  73. "Jihadists seize Syria town, 'execute 60'". AAP. 14 January 2014. Retrieved 13 January 2014. 
  74. "Opposition forces seize Masqan in Aleppo as ISIL tightens grip over Al-Bab". Syria Newsdesk. 14 January 2014. Retrieved 17 January 2014. 
  75. ISIL recaptures Raqqa from Syria’s rebels
  76. "Rebel factions oust ISIL from most of Jarablos in Aleppo". Syria Newsdesk. 14 January 2014. Retrieved 17 January 2014. 
  77. Phalange fighter captures the villages and Jibreen Hardntin Brive Aleppo
  78. Combat battalions controlled Alr another village Brive Aleppo
  79. "Al-Mujahideen Army ousts ISIL from Ratyan in Aleppo". Syria Newsdesk. 18 January 2014. Retrieved 18 January 2014. 
  80. 80.0 80.1 "Syrie: 16 morts dans un double attentat". 2014-01-20. Retrieved 2014-02-10. 
  81. "3 suicide car explosions in Aleppo and Idlib". 2014-01-20. Retrieved 2014-02-10. 
  82. Zawahri urges end to deadly clashes between rebels and jihadists
  83. ISIS have completely taken over the town of Darkoush
  84. "ISIS leaders killed, captured in Aleppo". The Daily Star. 28 January 2014. Retrieved 28 January 2014. 
  85. "ISIS confirms death of senior leader in Syria". The Long War Journal. 5 February 2014. 
  86. "ISIS Attacks Rebel Base in Aleppo". Syrian National Coalition Of Syrian Revolution and Opposition Forces. 1 February 2014. 
  87. "Al-Qaeda disavows ISIS militants in Syria". BBC News. 3 February 2014. 
  88. "Al-Raqqa rebel group promises military action against ISIL". Syria Newsdesk. 4 February 2014. 
  89. "FSA attacks ISIL checkpoint in Al-Raqqa". Syria Newsdesk. 3 February 2014. 
  90. "No truce with ISIS, Islamist group says". The Daily Star. 7 February 2014. 
  91. "The Front of Aleppo Islamic Scholars urges ISIL to depart Syria immediately". Syria Newsdesk. 5 February 2014. 
  92. "Activists say ISIS top commander killed in Syria". Al Arabiya News. 8 February 2014. 
  93. "13 members defect from ISIL in Al-Raqqa". Syria Newsdesk. 9 February 2014. 
  94. "Sectarian Massacre In Hama, ISIS Withdraws From Deir Al-Zor". The Syrian Observer. 12 February 2014. 
  95. "Regime forces inch closer to Aleppo". The Daily Star. 26 February 2014. 
  96. "ISIS jihadists retreat from parts of north Syria:activists". The Daily Star. 28 February 2014. 
  97. "Regime captures village near Yabroud". The Daily Star. 4 March 2014. 
  98. "Jihadists 'execute' at least 22 in Syria: NGO". The Daily Star. 11 March 2014. 
  99. 'Shoot' order given to Turkish troops based in Aleppo
  100. "FSA assassinates ISIL leader in Al-Raqqa countryside". Syria Newsdesk. 12 March 2014. 
  101. ISIL fighters pull out of key Syrian Turkmen town
  102. "Clashes renewed between Islamist groups near Syria's Hasaka". Ara News. 18 March 2014. 
  103. Clashes in Der-Ezzor and Bombardment on areas in Hama
  104. Syrians rally in support of rebels’ coastal offensive
  105. ISIS kills 35 fighters from Jabhat Al-Nusra and Islamic battalions
  106. Syria Qaeda loses ground to jihadist rivals on Iraq border
  108. ISIS on retreat in Deir al-Zor after surprise attack | News , Middle East | THE DAILY STAR
  109. ISIS reportedly kills Al Nusrah Front's commander for Idlib province - Threat Matrix
  110. FSA strikes jihadist-held stronghold
  111. Al Qaeda splinter group moves to take eastern Syrian city
  113. إعدام القائد العسكري للواء إسلامي في الرقة
  114. اخبار الآن | داعش يعدم ’’صياد دبابات الأسد‘‘.. وحركة أحرار الشام تتوعد بالانتقام
  115. داعش يذبح "قناص الدبابات" في حركة أحرار الشام
  116. Jihadists trying to establish Islamic state on border of Syria and Iraq
  119. ISIS bolsters presence in eastern Syria, advances towards Iraq
  120. الجيش الحر يغتال أمير داعش في حمص والمنطقة الشرقية
  121. "Al-Qaida offshoot in fierce offensive, carves out territory across Syria and Iraq". Reuters. 10 June 2014. Retrieved 10 June 2014. 
  123. ISIS’s victories may win it Syrian recruits
  124. Syria jihadists now using Humvees seized in Iraq: NGO
  125. "Nusra Front pledges loyalty to ISIS: activists". The Daily Star. 25 June 2014. Retrieved 25 June 2014. 
  126. ISIS crucifies 8 rebels in Aleppo: activists
  127. Report: Jihadi group captures Syrian border town The Washington Post 2014-07-01
  128. Al Qaeda leaves east Syria strongholds to Islamic State: monitor
  129. Extremist Group Takes Syrian Towns, Key Oil Field
  130. Al Qaeda leaves east Syria strongholds to Islamic State -monitor Reuters Thu Jul 3, 2014
  131. Islamic State extends gains in parts of Syria: monitor Reuters July 4, 2014
  132. Islamic State expels rivals from Syria's Deir al-Zor - activists
  133. Rebels demand help as fighting rages against ISIS in Ghouta
  134. Rebels demand help as fighting rages against ISIS in Ghouta
  135. Reinforcements rush to Aleppo as battles rage
  136. "1,000 Syrian rebels defect to Islamic State in sign it’s still strengthening". McClatchy News Service. 8 July 2014. Retrieved 25 August 2014. 
  137. East Damascus hit by fiercest clashes in months
  138. Rebel-jihadist clashes in north Syria kill 39
  139. Islamic State seizes more territory in Syria: monitor
  140. 52 dead as jihadists make gains in northern Syria: monitor
  141. Syria Clashes as Jihadists Advance on Rebel Bastions
  142. ISIL Captures More Syrian Villages En Route to Rebel Stronghold
  143. IS, government forces close in on Aleppo as splits emerge in opposition
  144. Aleppo province:24-08-2014
  145. المعارضة تطلق معركة لطرد "تنظيم الدولة"من حلب
  146. Syria rebels attack IS militants in Aleppo, killing 43
  147. رجل الثورة القوي: "داعش" شكّل درعاً للأسد وجيشه
  148. "22 killed in protests against ISIL siege of Kurdish tow". Today's Zaman. 8 October 2014. Retrieved 10 October 2014. 
  149. "The Dawn of Freedom Brigades: Analysis and Interview". Syria Comment. 2 October 2014. Retrieved 10 October 2014. 
  150. 150.0 150.1 "FSA fighting alongside Kobane Kurds". NOW. 9 October 2014. Retrieved 10 October 2014. 
  151. "ISIL ‘reaching out’ to Syrian rebels, urges end to infighting". Alarabiya. 19 January 2014. Retrieved 19 January 2014. 
  152. "Rebels take northern town on main highway". AFP. 5 April 2014. Retrieved 5 May 2014. 
  153. "63 dead as jihadist rivals clash in east Syria: NGO". AFP. 5 May 2014. Retrieved 5 May 2014. 
  154. "Syria: Al-Nusra Front agrees to end fighting with ISIS". Asharq Al-Awsat. 5 May 2014. Retrieved 21 May 2014. 
  155. "Hundreds killed as ISIL insurgents gain ground in east Syria". Reuters. 10 June 2014. Retrieved 17 June 2014. 
  156. "Syria rebels, ISIS in 'non-aggression' pact near Damascus". The Daily Star. 12 September 2014. Retrieved 12 September 2014. 
  157. "Syrian Opposition Blasts Reports It Signed a Truce With ISIS". The Daily Beast. 16 September 2014. Retrieved 16 September 2014. 
  158. 3,300 have been killed since the start of the clashes with the Islamic State
  159. Total number of victims killed by the Islamic State

This page uses Creative Commons Licensed content from Wikipedia (view authors).