Saudi Arabia can do squat against tribal militias in Yeman right on their own border. In fact, they are getting their asses handed to them.
There is no way they could forward deploy up to 100,000 troops over 1000 kms away in Syria.
Saudi Arabian war abilities. And that is why my son and several thousand others were in SA 6 or 7 days after Sadam Hussein invaded Kuwait in August 1990. Without even time to phone home and say goodbye. I had hoped that the nearly universal threat from terrorist Islam would help bring Russia, US, EU, and China together to cooperate. Could the Russian “snap exercise” be staged to look like a southern move, but in fact be preparation for a lightening move west on Ukraine, like the Crimean move?