As I said below, what if the leadership of Saudi Arabia is seized by some hostile factions which attack the US &amp; EU interests in the area ? What if these factions denounce the US - Saudi alliance and switch sides demanding help from the Chinese ? You think US &amp; EU would place sanctions and wait like they do with the Russians ? I think US &amp; EU would pull out all the files (support for terrorism, human rights abuses, democracy, yada, yada) they have against &quot;ex-Saudi&quot; Arabia and punch their way in before the Chinese move an inch.