Secretary of State John Kerry said that some groups the US doesn't support are gaining more influence with the rebels in the absence of greater Western help.
Syrian Foreign Minister Walid al-Moallem said in Moscow that the Assad government wanted to engage in 'dialogue with anyone who's willing for it, even those who carry arms.'
Despite European and US resistance to arming the Syrian rebels, the conflict is becoming more militarized. Yesterday regime troops launched a missile at a rebel position.
As fresh details emerge about the suspected Israeli airstrike in Syria last week, key facts – like what the strike targeted – remain muddled.
The Assad regime says the attack underscores the need for unity. The opposition has contrasted the regime's lack of response with its relentless attacks on its own people.
Russia's actions regarding its citizens in Syria have been under close watch in the West, in hopes that it might signal an about-face from Syria's biggest foreign backer.