The current Lebanese government has resigned. Syria of late is so cooperative! First handing over 30 IRaqi Baathists, and now this.
When the possibility of military action is felt, the diplomatic channels flow.
But will actual military action be required to force the withrawal of Syrian forces? I suspect that if the Syrians do not withraw "voluntarily", then the Lebanese will take actions, possibly with air support from the US (via Turkey, the Balkans, Italy, Carrier group) and possibly even our "oldest ally" France!
As i have predicted elsewhere, a regime change will occur in Syria before Iran.