Steven Heydemann at the United States Institute of Peace says that's because Tehran has much to lose.
“Iran for much of the period since the Syrian uprising began has been the most important ally of the Assad regime and has really thrown itself wholeheartedly into ensuring the regime’s survival,” he said.
Part of that is Iran's use of the militant group Hezbollah, whose leader, Sayyed Hassan Nasrallah, has vowed to fight in Syria himself if the need arises.
Michael Rubin at American Enterprise Institute said, "Hezbollah, of course, is going to perhaps act as a proxy of Iran in all of this, though we've seen in recent weeks that Hezbollah has become much weaker than it has been in the past."
Iran's influence also extends to Iraq, where Shi'ite communities have sent militants to fight and die defending the Syrian regime.
In Syrian refugee camps anger against Iran is building. One refugee in a camp in Jordan says Iran and Hezbollah are also to blame for the chemical weapons attacks outside Damascus.
For now, Iran remains resolute. Supreme Leader Ayatollah Ali Khamenei is warning that American intervention in Syria would be a disaster.
As war in Syria rages, Iran's focus seems set on carefully preserving its sphere of influence.
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25