As rebels in Syria make new advances against government forces, Newsweek has mapped the political stances of the rest of the region.Since the conflict escalated in 2012, the Syrian civil war has been defined by intervention from other actors across the world.

Rebels in northern Syria are exploiting the Assad regime's weakness.

The loss of Aleppo to Islamist rebels represents a stunning defeat for the Syrian regime, highlighting its dependence on enfeebled allies.