A top Free Syrian Army commander describes how the Russians bolster Assad's forces.
Iran's client terrorist group in Lebanon, who stepped in after Assad's forces withdrew, must govern or decline.
This is Putin's first visit to Iran since 2007.
Tehran lacks connections to Syria's communities and is unlikely to trust anyone other than Assad or his inner circle.
Rape for "honor crimes" is deeply ingrained and widespread in Syria's Islamic society.
Deir Ezzor's residents remain steadfast in their resistance to ISIS despite the siege and fighting.
"If the international community had instituted the no-fly zone, Aleppo would be free today."
Kerry says decision to send in special forces is strictly to fight Islamic State.
The additional U.S. troops will operate in a limited "advise and assist" capacity.
It will be the first time that Tehran attends an international summit on the four-year-long war.
Foreign Minister Sergei Lavrov also says Russia would be willing to aid Western-backed rebels.
Assad is more confident in his regime's strength, and the Kremlin seeks to heighten its diplomatic cred.
The analysis undermines Moscow's assertions that its aim is to defeat the group.
Though Putin may look like he's in control in Syria, the intervention is likely to end badly for him.
The new alliance calls itself the Democratic Forces of Syria.
"They are backing the butcher Assad.... It's going to make the region more unstable."
Stepping up support for extremists simply because Russia has targeted them would be folly.
Senior ministers from both countries confirmed that the talks could happen as early as today.
Men are most likely to die from shootings and executions in Syria, according to a report by The BMJ.
Western governments should be warned that including Assad will only prolong the conflict.
Hilary Mantel and Ian Rankin will be taking part in the million-pound campaign.