Security Council's 5 permanent members meet informally to discuss Syria

The five permanent members of the U.N. Security Council are meeting informally to discuss a resolution that would authorize the use of military force against Syria.

Britain put forth the proposal Wednesday as momentum seems to be building among Western allies for a strike against Syria. U.S. leaders, including Vice President Joe Biden, have charged that President Bashar Assad's government used deadly chemical weapons near Damascus last week.

The U.S. has not presented concrete proof, and U.N. inspectors have not endorsed the allegations.

Russia, a Syrian ally and a permanent member of the Security Council, is all but certain to veto the resolution.