Hassan Nasrallah’s stirring and impassioned defense of Damascus despot Bashar Assad went far beyond the Hezbollah chief’s by-now expected bravado. This was something intrinsically different. Nasrallah is a proven master at toying with the emotions of both supporters and foes in Lebanon. This time, though, and perhaps for the first time, he displayed genuine emotion.It may have been Nasrallah’s usual braggadocio when he vowed to stay in the Syrian conflict “to the end of the road” and to bring victory to his beleaguered ally Damascus despot Bashar Assad. But the significant portions of his harangue were those in which he listed the consequences to Lebanon if Assad should fall.Nasrallah predicted a catastrophic outcome, from his point of view, in such an eventuality. He said Lebanon would be the next to cave under. The subtext is that Hezbollah would collapse in the Lebanese content. His Shi’ite organization would, in other words, lose its stranglehold over Lebanon.It was always apparent that Assad was Hezbollah’s patron and benefactor. But now Nasrallah had admitted in no uncertain terms that Assad is not merely an ally but an indispensable mainstay. Hence Nasrallah must do absolutely everything to keep Assad in power, because Nasrallah’s own power hinges on that.The fates of Assad and Hezbollah are one and the same. If Assad loses his struggle to maintain its sway over Syria, Hezbollah would lose its ability to maintain its sway over Lebanon. Hezbollah is not merely repaying a trusted confederate; Hezbollah is waging the ultimate fight for its power base in Lebanon.If ever definitive corroboration existed for the crucial deformative role played by Syria in Lebanese domestic affairs, this is it. It is Nasrallah’s proclaimed strategic doctrine. The inseparable tie between Assad and Nasrallah – the two regional malefactors – is now not merely a matter of deduction, cogent as it may be. Their life and- death symbiosis is out in the open, explicitly acknowledged, and implemented in Syria’s killing fields.Nasrallah keeps pouring more and more manpower into Syria and anti-Assad forces have now aimed their rockets at Hezbollah’s stronghold in Beirut. Just as Syria is considered a legitimate battleground for Hezbollah, so its Syrian enemies are likely to consider Lebanon a legitimate target for retaliation.Nasrallah has compelling reasons to fear that Assad’s defeat would send his enemies into Lebanon to root out the last vestiges of Assad’s prime accomplice, i.e. Hezbollah. This is not a conflict of choice for Hezbollah but a desperate fight to the finish.Hezbollah’s investment in Assad’s preservation has now superseded all its other agendas – including its enmity for Israel. The attacks – attributed to Israel – on convoys transferring weapons of mass destruction from Syria to Lebanon appear to bother Nasrallah remarkably less than the fear for the future of the Assad regime.Hezbollah is not, of course, the only player in Syria’s immediate vicinity that has a vested interest in safeguarding Assad. The biggest stake in Assad’s well-being is held by the godfather of the pro-Assad axis – Iran. To a great extent Hezbollah is fighting as Tehran’s surrogate.It does what Iran cannot directly do – openly dispatch combatants to fight Assad’s fight. Iran doubtless has contingency plans in the event that Assad should lose. For the ayatollahs, his fall would be a very bad blow but not a fatal one.For Hezbollah, Assad’s fall would spell its own. Hezbollah stands to lose everything and this is why it is fully embroiled in Syria’s civil war. Not only can Hezbollah act as Iran’s proxy but it has no option but to do its utmost to tilt the scales in Assad’s favor.Nasrallah’s fiery oratory notwithstanding, his organization faces odds it never encountered in the past. It is not only pitted against Israel and domestic Lebanese opponents. The entire coterie of fanatic Sunni baddies from all around the Muslim world both castigates and actively opposes it. Hezbollah is more vulnerable and far weaker than at any previous juncture.This is a heartening development for Israel and a welcome byproduct from its policy of non-intervention.