Reuters The collapse of a deal between Syria's two main opposition factions shows that voices calling for foreign intervention to topple President Bashar Al-Assad have gained the upper hand over those opposing it. But the quick unravelling of the pact, which ruled out such international action, ensures that achieving that goal will remain elusive since Western powers are loath to throw their weight behind a fractured Syrian opposition. Wary of the risks of engendering chaos and wider Middle East conflict given Syria's internal sectarian divisions and Assad's alliance with Iran, NATO says it has no plans to intervene as it did to back Libyan rebels who toppled Muammar Gaddafi last year. And neighboring Turkey, Assad's former ally, has said any intervention must be backed by the UN Security Council with Arab League support and must be justified on humanitarian grounds and not have regime change as its goal. Ten days ago Burhan Ghalioun, head of the mostly exiled Syrian National Council (SNC), signed an accord with the mainly Syrian-based National Coordination Body (NCB) outlining a transition to a democratic post-Assad Syria. The agreement rejected “any military intervention that harms the sovereignty or stability of the country”, while leaving the door open for an Arab role to stop Assad's military crackdown on protests in which 5,000 people have died, by a UN count. But members of Ghalioun's own council denounced the deal, forcing him to disavow it. Many grassroots protesters inside Syria also rejected it, saying they had lost hope that 10 months of peaceful demonstrations would bring down Assad. The NCB rejects foreign intervention, seeking instead a political agreement for a transitional government to replace Assad, a path it says would save Syria from disintegrating along sectarian and ethnic lines. SNC member Khaled Kamal said many members had originally shared the NCB's rejection of an intervention such as a no-fly zone or buffer zone to protect Syrian civilians. “But now all roads are blocked and the political solution did not work,” he said. “After 10 months and after we knocked on all doors... foreign intervention is the only choice before us,” he said, adding that the SNC will begin a campaign to get recognition as the only opposition group representing the mass demonstrations. The revolt has become bloodier as protests have become overshadowed by armed rebels taking the fight to the security forces. Syria says it is fighting Islamist militants who it blames for killing 2,000 of its security forces and soldiers. The National Council, ignoring Ghalioun's concerns of possible civil war, wants to give a bigger role for the rebel Free Syrian Army that has been attacking security forces. It is also seeking international steps to prevent Assad using warplanes against popular unrest and to create a buffer zone on the Turkish border, which would provide the FSA a base to escalate attacks on Assad's forces. Such views are echoed among many activists in flashpoint cities such as Homs and Hama. __