A man walks past a damaged ambulance after an airsrike hit yestesrday Anadan Hospital, sponsored by Union of Medical Care and Relief Organizations (UOSSM), in the rebel held city of Anadan, northern Aleppo province, Syria July 31, 2016. (Photo by Ammar Abdullah/Reuters)





Rebel fighters rest near their weapons inside a safe house in the rebel held al-Rashideen neighbourhood, Western Aleppo province, Syria July 31, 2016. (Photo by Ammar Abdullah/Reuters)





People attend a protest carrying Free Syrian Army flags, while burning tyres which they said are used to create smoke cover from warplanes, in Aleppo, Syria July 31, 2016. (Photo by Abdalrhman Ismail/Reuters)





A man burns beddings, which activists said are used to create smoke cover from warplanes, in Aleppo, Syria August 1, 2016. (Photo by Abdalrhman Ismail/Reuters)





Smoke rises from burning tyres, which activists said are used to create smoke cover from warplanes, in Aleppo, Syria August 1, 2016. (Photo by Abdalrhman Ismail/Reuters)





A man rides a bicycle past burning tyres, which activists said are used to create smoke cover from warplanes, in Aleppo, Syria August 1, 2016. (Photo by Abdalrhman Ismail/Reuters)





Syrian swimmer Baean Jouma (R) poses for a selfie with her friends at a cafe in Damascus, Syria July 27, 2016. (Photo by Omar Sanadiki/Reuters)





Women walk past a closed fuel shop in a rebel-controlled area of Aleppo, due to a siege by Syrian pro-government forces that cut the supply lines into opposition-held areas of the city, Syria August 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





Civilians walk past empty merchandise stalls in Aleppo's rebel-controlled Bustan al-Qasr neighbourhood due to a siege by Syrian pro-government forces that cut the supply lines into opposition-held areas of the city, Syria August 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





Free Syrian Army fighters ride on a vehicle past empty merchandise stalls in Aleppo's rebel-controlled Bustan al-Qasr neighbourhood due to a siege by Syrian pro-government forces that cut the supply lines into opposition-held areas of the city, Syria August 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





A man rides a motorcycle past merchandise stalls in Aleppo's rebel-controlled Bustan al-Qasr neighbourhood during a siege by Syrian pro-government forces that cut the supply lines into opposition-held areas of the city, Syria August 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





Civilians sit amid empty empty plastic crates at a closed shop in Aleppo's rebel-controlled al-Shaar neighbourhood due to a siege by Syrian pro-government forces that cut the supply lines into opposition-held areas of the city, Syria August 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





A man walks past a closed shop in Aleppo's rebel-controlled al-Shaar neighbourhood, Syria August 5, 2016. (Photo by Abdalrhman Ismail/Reuters)





A fighter of the Syrian Islamist rebel group Jabhat Fateh al-Sham, the former al Qaeda-affiliated Nusra Front, rides in an armoured vehicle in the 1070 Apartment Project area in southwestern Aleppo, Syria August 5, 2016. (Photo by Ammar Abdullah/Reuters)





Smoke rises near the 1070 Apartment Project area in southwestern Aleppo, Syria August 5, 2016. (Photo by Ammar Abdullah/Reuters)





Fighters of the Syrian Islamist rebel group Jabhat Fateh al-Sham, the former al Qaeda-affiliated Nusra Front, ride on a pick-up truck in the 1070 Apartment Project area in southwestern Aleppo, Syria August 5, 2016. (Photo by Ammar Abdullah/Reuters)





Rebel fighters pose for a picture in the artillery academy of Aleppo, Syria, August 6, 2016. (Photo by Ammar Abdullah/Reuters)





An armoured vehicle belonging to rebel fighters is pictured in an artillery academy of Aleppo, Syria August 6, 2016. (Photo by Ammar Abdullah/Reuters)





Abandoned military vehicles are pictured in an artillery academy of Aleppo, Syria, August 6, 2016. (Photo by Ammar Abdullah/Reuters)





Abandoned military weapons are pictured in an artillery academy of Aleppo, Syria, August 6, 2016. (Photo by Ammar Abdullah/Reuters)





Rebel fighters prepare their weapons in an artillery academy of Aleppo, Syria, August 6, 2016. (Photo by Ammar Abdullah/Reuters)





A rebel fighter sits with his weapon in the artillery academy of Aleppo, Syria, August 6, 2016. (Photo by Ammar Abdullah/Reuters)





Rebel fighters ride a tank in an artillery academy of Aleppo, Syria, August 6, 2016. (Photo by Ammar Abdullah/Reuters)





A civil defence member runs near an ambulance after an airstrike on a hospital in the town of Meles, western Idlib city in rebel-held Idlib province, Syria August 6, 2016. (Photo by Ammar Abdullah/Reuters)





A woman approches a Syria Democratic Forces (SDF) fighter to kiss him after the fighters entered Manbij, in Aleppo Governorate, Syria, August 7, 2016. (Photo by Rodi Said/Reuters)





A Syria Democratic Forces (SDF) fighter gestures on a street in Manbij, in Aleppo Governorate, Syria, August 7, 2016. (Photo by Rodi Said/Reuters)





Smoke and rubbles rise after Syrian oppositions blow up a tunnel under Syrian Regime forces' headquarters in Aleppo's Ramuse region, Syria on August 3, 2016. (Photo by Muhammed Sheekh/Anadolu Agency/Getty Images)





Search and rescue team members carry a man after Syrian regime airstrikes targeted the Meshed neighborhood of Aleppo, Syria on July 21, 2016. (Photo by Beha el Halebi/Anadolu Agency/Getty Images)





Rebel fighters fire towards positions of regime forces in Ramussa on the southwestern edges of Syria's northern city of Aleppo on August 6, 2016. Syrian rebels said they have broken a three-week government siege of second city Aleppo, turning the tables on Russian-backed regime forces who are now on the defensive. (Photo by Fadi Al-Halabi/AFP Photo)





A man looks on as Syrian civil defense workers look for survivors under the rubble of a collapsed building following reported air strikes on July 17, 2016 in the rebel-controlled neighbourhood of Karm Homad in the northern city of Aleppo. Opposition-controlled parts of Syria's battered northern city Aleppo came under total siege, after government forces severed the last route out of the east. An estimated 300,000 civilians live in rebel-held neighbourhoods of Syria's second city, according to the United Nations, and there are fears that they could face starvation. (Photo by Thaer Mohammed/AFP Photo)





Men transport a casualty at a site hit by airstrikes in the rebel held Douma neighbourhood of Damascus, Syria, July 25, 2016. (Photo by Bassam Khabieh/Reuters)





Syrian civil defence volunteers, known as the White Helmets, gather in a street in the northern city of Aleppo on August 6, 2016, in celebrations after rebels said they have broken a three-week government siege on Syria's second city. Rebel groups successfully broke the siege by opening a new route into the city from the southwest, opposition officials said.
Opposition fighters, Islamists and jihadists have waged fierce assaults since July 31 to end the siege by government forces of some 250,000 people in Aleppo's eastern districts. Rebel and regime forces have fought for control of the provincial capital since mid-2012, transforming the former economic powerhouse into a divided, bombed-out city. (Photo by Thaer Mohammed/AFP Photo)





Syrian civil defence workers rescue a wounded young man from under the rubble of a collapsed building following reported air strikes on July 17, 2016 in the rebel-controlled neighbourhood of Maysar in the northern Syrian city of Aleppo. Opposition-controlled parts of Syria's battered northern city Aleppo came under total siege, after government forces severed the last route out of the east. An estimated 300,000 civilians live in rebel-held neighbourhoods of Syria's second city, according to the United Nations, and there are fears that they could face starvation. (Photo by Thaer Mohammed/AFP Photo)