Entire neighbourhoods have been levelled across the country.

INTERACTIVESee how Jobar, Eastern Ghouta, has been destroyed

February 2018

August 2013

A recent UN assessment found 93% of buildings had been damaged or destroyed in one district of the rebel-held Eastern Ghouta region near Damascus.

How is the country divided?

Image copyrightREUTERS

The government has regained control of Syria's biggest cities but large parts of the country are still held by rebel groups and the Kurdish-led SDF alliance.

The largest opposition stronghold is the north-western province of Idlib, home to more than 2.6 million people.

Despite being designated a "de-escalation zone", Idlib is the target of an offensive by the government, which says it is targeting jihadists linked to al-Qaeda.

A ground assault is also under way in the Eastern Ghouta. Its 393,000 residents have been under siege by the government since 2013, and are facing intense bombardment as well as severe shortages of food and medical supplies.