Fighters from Hezbollah and Iraq’s Shiite militias have deployed to Syria to support government forces, but it’s unclear if they are capable of turning the tide.

Lebanese armed group Hezbollah does not currently intend to send fighters to northern Syria to support the Syrian army there, three sources familiar with the Iran-backed group's thinking told Reuters on Monday.

Time and time again the Assad dynasty has survived internal and external challenges and lived to fight another day. But nothing lasts forever.