Kuwait Crisis heats up?

What if our little Gulf War ended up dragging the entire region into a hell fire? With Saddam racing down the coast, attacking neutral Arabs and so on? Who would get involved and who would stay out?
 
so the POD would be that Iraq struck first, without waiting for the U.S. to build up?

If the Iraqis had attacked into Saudi Arabia first, the U.S. forces there could not have held them.
 
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