A Syrian man walks past a lupini beans cart in the rebel- held town of Douma, on the eastern outskirts of the capital Damascus, on January 25, 2017. (Photo by Abd Doumany/AFP Photo)





Syrian women take pictures as they ride a train travelling through Aleppo's devastated eastern districts for the first time in more than four years, on January 25, 2017. It is the train's first such trip since rebels overran east Aleppo in the summer of 2012, effectively dividing the northern city into a regime-held west and a rebel-controlled east. (Photo by George Ourfalian/AFP Photo)





Damaged buildings are pictured at night in the rebel-held town of Dael, in Deraa Governorate, Syria January 21, 2017. Picture taken January 21, 2017. (Photo by Alaa Al-Faqir/Reuters)





An internally displaced Syrian man that fled Raqqa city walks near sheep in Ras al-Ain province, Syria January 22, 2017. (Photo by Rodi Said/Reuters)





An internally displaced Syrian man that fled Raqqa city rides a donkey in Ras al-Ain province, Syria January 22, 2017. (Photo by Rodi Said/Reuters)





An internally displaced Syrian man who fled Raqqa city rests on the ground in Ras al-Ain province, Syria January 22, 2017. (Photo by Rodi Said/Reuters)





Internally displaced Syrian children who fled Raqqa city stand near their tent in Ras al-Ain province, Syria January 22, 2017. (Photo by Rodi Said/Reuters)





An internally displaced Syrian boy who fled Raqqa city rides a donkey while herding sheep in Ras al-Ain province, Syria January 22, 2017. (Photo by Rodi Said/Reuters)





An internally displaced Syrian woman who fled Raqqa city makes bread inside a tent in Ras al-Ain province, Syria January 22, 2017. (Photo by Rodi Said/Reuters)





Rebel fighters carry meat to be cooked inside a hole in the ground on the outskirts of Al-Bab town in Syria January 22, 2017. (Photo by Khalil Ashawi/Reuters)





A rebel fighter rests near a fire on the outskirts of Al-Bab town in Syria January 22, 2017. (Photo by Khalil Ashawi/Reuters)





Rebel fighters carry their weapons on the outskirts of Al-Bab town in Syria January 22, 2017. (Photo by Khalil Ashawi/Reuters)





A woman walks near a damaged house after a strike on rebel-held Tafas town, in Deraa Governorate, Syria January 22, 2017. (Photo by Alaa Al-Faqir/Reuters)





Boys are seen near a damaged house after a strike on rebel-held Tafas town, in Deraa Governorate, Syria January 22, 2017. (Photo by Alaa Al-Faqir/Reuters)





People ride in a vehicle stacked with their belongings after fleeing clashes in the northern Syrian town of al-Bab, Syria January 26, 2017. (Photo by Khalil Ashawi/Reuters)





People ride in vehicles after fleeing clashes in the northern Syrian town of al-Bab, Syria January 26, 2017. (Photo by Khalil Ashawi/Reuters)





A rebel fighter carries his weapons on the outskirts of the northern Syrian town of al-Bab, Syria January 26, 2017. (Photo by Khalil Ashawi/Reuters)





A rebel fighter smokes a cigarette with his weapon on the outskirts of the northern Syrian town of al-Bab, Syria January 26, 2017. (Photo by Khalil Ashawi/Reuters)





Donkeys walk past a rebel military vehicle on the outskirts of the northern Syrian town of al-Bab, Syria January 26, 2017. (Photo by Khalil Ashawi/Reuters)





Rebel fighters arrange shells on the outskirts of the northern Syrian town of al-Bab, Syria January 26, 2017. (Photo by Khalil Ashawi/Reuters)





A woman and a government soldier stand near a shop in Damascus, Syria January 27, 2017. (Photo by Ali Hashisho/Reuters)





A vendor stands under prayer beads displayed for sale in Damascus, Syria January 27, 2017. (Photo by Ali Hashisho/Reuters)





A waiter waits tables at a restaurant in Damascus, Syria January 27, 2017. (Photo by Ali Hashisho/Reuters)





A woman walks along a stall with prayer beads displayed for sale in Damascus, Syria January 27, 2017. (Photo by Ali Hashisho/Reuters)





A man walks near snow on the closed off Damascus to Homs highway, Syria January 28, 2017. (Photo by Omar Sanadiki/Reuters)





A Syrian national flag flutters during a snow storm at sunrise in Damascus, Syria January 28, 2017. (Photo by Ali Hashisho/Reuters)





A man walks with his bicycle during a snow storm in Damascus, Syria January 28, 2017. (Photo by Ali Hashisho/Reuters)





A child plays with a bicycle on snow in al-Rai town, northern Aleppo countryside, Syria January 28, 2017. (Photo by Khalil Ashawi/Reuters)





Rebel fighters play with snow in al-Rai town, northern Aleppo countryside, Syria January 28, 2017. (Photo by Khalil Ashawi/Reuters)





A boy plays with a wheel on snow in al-Rai town, northern Aleppo countryside, Syria January 28, 2017. (Photo by Khalil Ashawi/Reuters)





A free Syrian army flag is hung in snow covered al-Rai town, northern Aleppo countryside, Syria January 28, 2017. (Photo by Khalil Ashawi/Reuters)





A child plays with snow on the back of a pick-up truck in al-Rai town, northern Aleppo countryside, Syria January 28, 2017. (Photo by Khalil Ashawi/Reuters)





Children play with snow near rubble of damaged buildings in al-Rai town, northern Aleppo countryside, Syria January 28, 2017. (Photo by Khalil Ashawi/Reuters)





A boy walks near snow-covered rubble of damaged buildings in al-Rai town, northern Aleppo countryside, Syria January 28, 2017. (Photo by Khalil Ashawi/Reuters)





A rebel fighter takes a selfie with a boy on snow-covered ground in al-Rai town, northern Aleppo countryside, Syria January 28, 2017. (Photo by Khalil Ashawi/Reuters)





A medic tends to the wounds of a rebel fighter who was injured from a mine on the outskirts of the northern Syrian town of al-Bab, Syria January 28, 2017. (Photo by Khalil Ashawi/Reuters)





Medics tend to the wounds of a rebel fighter who was injured from a mine on the outskirts of the northern Syrian town of al-Bab, Syria January 28, 2017. (Photo by Khalil Ashawi/Reuters)





Blood is seen on a rebel fighter's face after a mine exploded on the outskirts of the northern Syrian town of al-Bab, Syria January 28, 2017. (Photo by Khalil Ashawi/Reuters)





Al- Ittihad supporters wave flags bearing the team colors during the Syrian league football match between derby rivals Al- Ittihad and Al- Hurriya, on January 28, 2017, in the northern Syrian city of Aleppo. The Ittihad club beat Hurriya 2-1 in their first match on home turf since rebels took east Aleppo in 2012, dividing the northern city into a regime- held west and rebel- controlled east. (Photo by George Ourfalian/AFP Photo)





Fans attend the Syrian league football match between derby rivals Al- Ittihad and Al- Hurriya, on January 28, 2017, in the northern Syrian city of Aleppo. (Photo by George Ourfalian/AFP Photo)





Syrians walk amid destroyed buildings as residents return to Aleppo' s formerly rebel- held al- Shaar neighbourhood on January 21, 2017, a month after government forces retook the northern Syrian city from rebel fighters Tens of thousands of east Aleppo residents fled their neighbourhood in early December during fierce fighting between rebels and advancing army troops. But once the government declared its recapture of the city on December 22, they came back to start the slow work of rebuilding. (Photo by Louai Beshara/AFP Photo)