January 2017

On 20 January 2017, the al-Nusra Front (Jabhat Fateh al-Sham (JFS)) launched several coordinated attacks against Ahrar al-Sham headquarters and positions in the northern Idlib Governorate, near the Bab al-Hawa Border Crossing. In addition, al-Nusra also attacked Ahrar al-Sham outposts in Darkush and Jisr al-Shughur.^[40] On the same day, Jund al-Aqsa raided an Ahrar al-Sham prison in Jabal Zawiya and freed 13 of their prisoners.^{[41][better source needed]} Meanwhile, in the same area, al-Nusra attacked the Mountain Hawks Brigade of the Free Idlib Army and captured a commander and his equipment.^[42]

On 23 January, JFS announced that it has expelled Jund al-Aqsa from its ranks. Clashes then continued.^[21] JFS fighters, with support from the Nour al-Din al-Zenki Movement, captured the headquarters of the Army of Mujahideen in western Aleppo. They also proceeded to attack the Levant Front in Haritan.^[31]

By 24 January, the Army of Mujahideen joined Ahrar al-Sham after its defeat by JFS.^[26] Ahrar al-Sham then deployed several military convoys to the countryside of Idlib and western Aleppo in order to deter attacks by JFS.^[43] Meanwhile, the Sham Legion repelled a JFS attack against a Mujahideen Army base in rural Idlib.^[27]

On 25 January, JFS militants captured the Idlib central prison from the Suqour al-Sham Brigade.^[20]

By 26 January, Ahrar al-Sham and its allies had captured multiple villages in the northern part of the Jabal Zawiya region from JFS, in a region between Balyin, Kafr Naya, and Maarrat al-Nu'man.^[3] On the same day, militants loyal to JFS captured the strategic town of Halfaya from rival opposition forces.^[44] The next day, JFS forces attacked the headquarters of Jaysh al-Islam in northern Idlib.^[45] By 27 January, it was reported that JFS had lost over 35 fighters in the clashes with other rebel groups.^[34]

During the clashes, it was reported that civilians gathered near settlements caught in the conflict and protested against Fatah al-Sham's attacks on rival opposition forces, and called on the conflict to end in order to save civilian lives.^[46]

On 28 January, JFS disbanded and merged with several other Islamist groups and formed Tahrir al-Sham (Levant Liberation Body).^[47] The overall mission for this new front is likely to consolidate power in northwestern Syria against rival opposition groups, most prominently Ahrar al-Sham.

On 30 January, there were reports of mobilizations by Tahrir al-Sham and Ahrar ash-Sham at the Bab al-Hawa Border Crossing and other nearby areas, and that the 2 groups were preparing for another round of clashes.^{[dubious – discuss]}

February 2017

On 2 February, Tahrir al-Sham's former JFS forces attempted to occupy a bakery in Atarib, the largest bakery in western Aleppo, but withdrew after protests by residents.^[48] Several days later, the Uzbek Jihadist group Katibat al-Tawhid wal-Jihad pledged its allegiance to Tahrir al-Sham.^{[49][better source needed]}

On 7 February 2017, Jund al-Aqsa attacked the headquarters of Jaysh al-Nasr near the town of Murak, in northern Hama. Jund al-Aqsa then captured the town of Kafr Zita and stormed Taybat al-Imam,^[6] capturing more than 250 fighters and weapons from Jaysh al-Nasr.^[32] On 9 February, Jund al-Aqsa attacked the headquarters of Ajnad al-Sham, Saraya al-Ghuraba, Liwa al-Maghawir and several other rebel units around Kafr Zita and in other areas in the northern Hama countryside, expanding its influence and capturing weapons, supplies and vehicles. By then, Jund al-Aqsa had taken full control of 17 towns and villages overall.^{[5][50][better source needed]}

During the afternoon of 11 February, local civilians expelled Islamist rebels of Ahrar al-Sham and Jaysh al-Nasr from the town of Kafr Nabudah. The rebels were mobilizing in the town to prepare for an offensive in northern Hama. Protesters threw stones and attacked the rebel convoy, killing 3 and injuring 20 of the rebel fighters.^[10]

On 13 February, clashes erupted between the previously allied Tahrir al-Sham and Jund al-Aqsa in northern Hama and southern Idlib.^[51] HTS declared war on Jund al-Aqsa as a result, and the clashes resulted in the deaths of almost 70 fighters on both sides.^[25] At least 17 of those killed were Jund al-Aqsa fighters,^[52] Abu Bakr Tamanna, who led a group of suicide bombers for JFS during the rebel the attempt to break the siege of Aleppo, at the 3000 apartments, was killed by Liwa al-Aqsa.^[53] During the fighting, Kafers Jonah village was captured by Liwa al-Aqsa after its general security leader Abu Rihana was killed by Tahrir al-Sham.^[54]

On 14 February, Jund al-Aqsa announced the execution^[55] of 150–200 prisoners of war, including both HTS and FSA fighters. More than 160 of those executed were FSA fighters, including more than 70 from Jaysh al-Nasr, while 43 were HTS members who were killed after a Sharia Court was stormed^[33] in Idlib's rural countryside in Moqa village by Liwa al-Aqsa.^[56] In order to secure a potential withdraw the Syrian opposition and Liwa Aqsa engaged in talks.^[57] Still, on the next day, HTS captured the village of Heish from Jund al-Aqsa, and then besieged the retreating Jund al-Aqsa forces in Khan Shaykhun and Murak.^[8] The Turkistan Islamic Party and Tahrir al-Sham surrounded Liwa Al-Aqsa in Mourak and Khan Shaykhoun.^[58] Turkistan Islamic Party and Liwa al-Aqsa negotiated an agreement.^{[citation needed]}

On 19 February, it was reported that 600 Jund al-Aqsa militants would be transported to the Ar-Raqqah Governorate to join ISIL, while the remaining Jund al-Aqsa forces would surrender their heavy weapons and join the Turkistan Islamic Party within 72 hours. By this point, it was reported that over 250 Free Syrian Army and Tahrir al-Sham fighters had been killed in clashes by Jund al-Aqsa.^{[59][better source needed]} That afternoon, a convoy of Jund al-Aqsa members and their relatives tried to cross from Idlib Province into the Raqqa Governorate, across a Syrian government supply route to Aleppo, stretching from Ithriyah to Salamiyah, in order to escape the rebel infighting. However, they were ambushed by the National Defence Forces, resulting in several deaths, with rest of the militants surrendering themselves.^{[60][better source needed]} On the same day, Tahir al-Sham stormed Jaysh al-Islam positions near the Bab al-Hawa Border Crossing and captured heavy weapons. HTS also occupied several abandoned warehouses formerly belonging to the Hazzm Movement.^{[61][better source needed]}

On 22 February, the last of Liwa al-Aqsa's 2,100 militants left their final positions in Khan Skaykhun, to join ISIL in Ar-Raqqah province, after a negotiated withdrawal deal with Tahrir al-Sham and the Turkistan Islamic Party.^[11] Armored vehicles, tanks, and heavy weapons were all burned by Liwa al-Aqsa during their withdrawal.^{[62][63][64][better source needed]} Afterward, Tahrir al-Sham declared the termination Liwa al-Aqsa, and promised to watch for any remaining cells.^[65]

On 23 February, the relatives of the FSA prisoners executed by Liwa al-Aqsa accused the group of treating them worse than the Syria government ever did.^[66] Around Khan Seikhoun, mass graves were discovered following Liwa al-Aqsa's retreat.^[67][68][69] Between 22 and 23 February, two separate mass graves containing the bodies of at least 131 executed rebels were found near the town. This was in addition to the discovery of the bodies of 41 fighters the previous week.^[70]

On 25 February, Ahrar al-Sham raided the Free Idlib Army's headquarters and warehouses in the village of Aqrab, Idlib. The AaS fighters occupied the area under the pretext of "protecting" the FIA from a potential HTS attack. The Free Idlib Army, however, denied that they were under attack by Ahrar al-Sham.^[71] Three days later, HTS attacked a Sham Legion headquarters in northern Idlib, and captured an arms depot.^[72]

March 2017

This section relies largely or entirely on a single source. (October 2021)

On 2 March, according to pro-government sources, the Sham Legion split into three armed groups, while fighting erupted in town of Saraqib, after a brigade in Ahrar al-Sham defected to Tahrir al-Sham.^{[73][74][better source needed]} The former Ahrar al-Sham brigade had been responsible for manufacturing and maintaining Ahrar al-Sham's weapons, according to pro-government sources.^{[75][better source needed]} On 3 March, according to pro-government sources, the clashes escalated, with clashes erupting between Ahrar al-Sham and Tahrir al-Sham in the city of Salqin.^{[76][better source needed]}

On 6 March, according to pro-government sources, Tahrir al-Sham attacked Ahrar al-Sham inside of Al-Mastoumeh and Kafr Yahmoul, to the south of Idlib, and captured several checkpoints inside of those villages, severing the main Idlib-Ariha road.^{[77][better source needed]}

On 7 March, according to pro-government sources, three Tahrir al-Sham fighters died when their vehicle hit an IED in the eastern Hama province; one of the fighters was reportedly as young as 14 years old.^{[78][better source needed]} Later that day, according to pro-government sources, Tahrir al-Sham and Ahrar al-Sham signed a ceasefire deal to end the fighting between them, and to create a new council to resolve their issues diplomatically instead of fighting.^{[79][better source needed]} However, two days later, according to pro-government sources, clashes broke out between Ahrar al-Sham and Tahrir al-Sham again in the Jabal Zawiya region, after Tahrir al-Sham attempted to arrest a senior Ahrar al-Sham leader in the area.^{[80][better source needed]}