The first occupation of Saudi Arabia was done by the Oil Companies, in close coordination of course with the USG and then with the CIA. The second occupation was to twist the 'Royal Family' to pursue political goals in tune with US policies, and since the 80s more and more in tune with Israel through the good offices of Saudi Ambassador Prince Bandar bin Sultan in Washington. The third occupation of Saudi Arabia was military and was already historic by the time of the first Gulf War. This military occupation was more overt before 9/11 and bin-Laden, now it is much more disguised with the CIA even more omnipresent than in the past. And now the fourth occupation of Saudi Arabia - US agencies sending their squads en masse and overtly to 'the Kingdom' to go after all the money that oil brought. Oh yes...if there is to be a fifth occupation of Saudi Arabia (which is the unspoken threat now coming from Washington) it will either be to buttress a falling Royal Family regime...or to replace it with something even more compliant and malleable when the time is right.