The wars are an attempt to send a message to those in the middle east who might be thinking of taking something other than the US dollar for their oil.
It's interesting that Ron Paul can just say something like "oh, the gold backed dinar will replace the US dollar as the reserve currency, don't know when, but 5 or 10 years maybe."
Because right there, that's really the biggie. They could spend some time going over 1) what would happen to the dollar if this gold dinar replaced the US Dollar as the reserve currency? And if the answer is "catastrophe", 2) what, then, are you prepared to do to prevent this from taking place?