The U.S. experience in Iraq suggests that foreign military involvement could not have prevented the scenario we now see unfolding in Syria.
As violence continues to spiral out of control in Syria, all signs point to a protracted struggle for the future of Syria.
The Syrian regime has recently suffered a series of significant blows, but strong military responses and Assad's unwillingness to step down indicate that violence in Syria is unlikely to end soon.
As violence continues to spiral out of control in Syria, the United States has begun to play a larger behind the scenes role in aiding the Syrian opposition.
Recent defections could lead the Syrian regime and its Alawite supporters to entrench even further and potentially unleash even greater violence.
If diplomacy in Syria does not succeed, the depth and breadth of devastation will increase dramatically. International actors must act swiftly and decisively in order to avoid further escalation of violence in Syria and its neighboring countries.
Would focusing on transition (not regime change) bring the Russians back to the table over Syria?
The Saudi regime may be urging stronger international action in Syria, but it is clearly wary of the recent wave of domestic agitation calling for non-official involvement in the crisis.
The recent public protests in Moscow differ from those in December and March because so far, they seem centered in Moscow, while the previous protests were widespread throughout the country.
A no-fly zone in Syria could risk formalizing the fragmentation and divisions in the country.