Years after defeating the Islamic State on the battlefield, world governments are now grappling with what to do with the thousands of war-related detainees in Syria.

Iran has built considerable political clout in Iraq since the fall of Saddam Hussein’s regime. Its wide sphere of influence could be expanding, raising domestic tensions and alarming U.S. policymaker…

Turkish President Erdogan and Syrian President Assad could see opportunities to extend their rules in the disaster that has killed tens of thousands and pushed relief systems to their limits.

Russia’s outsize impact on Turkish interests means Ankara is sticking to a middle ground on the war in Ukraine.