Al Jazeera has learned that the United Nations is now considering all options, including a peacekeeping force, as part of its plan if Syria's government falls.
The UN always anticipated playing a humanitarian role.
But now it concedes it may have to go beyond that - as most countries have shown little interest in getting involved.
Al Jazeera's diplomatic editor James Bays has our exclusive report.
Click here to read our correspondent's article on how different parties are planning for the likely collapse of President Bashar al-Assad's regime.