Bombing and bloodshed in Syria to rage on as seven-year war shows no signs of easing
It all started in 2011 when economic problems and a lack of freedom caused resentment and protests against President Assad’s rule. The resulting conflict allowed IS to flourish and created the world’s worst refugee crisis in decades

The fighting in Syria enters its eighth year on Thursday. A conflict that began as a peaceful uprising against President Bashar al-Assad’s regime escalated into a full-scale civil war that is now one of this century’s deadliest.
Along the way, the Syrian conflict allowed Islamic State extremists to flourish, created the world’s worst refugee crisis since the second world war and exacerbated an international power struggle.
After seven years of relentless bloodshed, here is a recap of the crisis:

Why did the war start?