Following significant diplomatic pressure, and faced with the possibility of losing Russian and Chinese backing, the Syrian government signed up to a UN ceasefire plan.
For now, in some regions, there is an uneasy peace. In other areas the truce has collapsed already.
Between the “ceasefire” formally coming into force on Thursday 13 April and the arrival of the first UN observers four days later, at least 41 people, mostly civilians, were reported killed.
Syria has signed up to remove its tanks, weapons and troops from urban centres — but it has failed to do so. And the army was shelling