its quite possible that saudi will send proxies rather than fight themselves (to syria) - they know that they can only fight a war with other peoples armies and the money they pay. hence the reason the use the pakis for example.
i dont really thing saudi will get their hands dirty but will use others, as in ezekiel 38 saudi (sheba and dedan) is described as standing aside and asking the invaders the reason for their actions.
in any event saudi princes only know how to buy women and boys not fight
