The Syrian War Is Actually Many Wars.“If you look at the literature on civil wars, it tends to suggest that the more foreign powers involved, the more difficult it is for a civil war to end—because most of those powers aren’t willing to quit until either they are exhausted or their claims and desires have been met,”

Over the seven years of Syria’s war, it has sucked in numerous other countries, who have attempted to shape the conflict with every tool from bombing to mercenaries to special operators to weapons shipments to money. The war has grown ever more complicated and more deadly over time, and Syria’s future is now largely being determined outside of its borders.