The Saudis are not going to use their own troops to defend themselves. During the Reagan/Bush I era, the US armed the Saudis with some of the most sophisticated weaponry available. But when the first Gulf War broke out, not a single Saudi soldier went to fight Saddam. The Saudis relied instead on the blood of Americans to defend their country. But Bush II and his cronies were never much up on history.
Migrants rush train tracks as Budapest station reopens (dpa)
from the article: Gates says Washington to sell smart bombs to Saudi Arabia