So you attack fundamentalist Islam by invading one of the more secular
states in the Middle East? Does not compute...

For the US:
1)Iraq is tactical target
2)Saudi Kingdom is strategic target
3)Egypt is the trophy.

Unfortunately US planners forgat something that some others might have
different great game plans (like following):
1)Iraq is nothing
2)Saudi Kingdom is tactical target
3)Iran and Turkey are strategic targets
4)USA is the trophy