The Saudis are not going to send in any Saudi troops. The rulers of Saudi Arabia do not want an experienced army.
They will send money to support their brother Sunnis, just as they always do. Were it not for Saudi Arabia financing fundamentalist Sunnis, the Middle East would be a far more peaceful place.
King Abdullah may be Juniorbush's favorite pal, but his country has caused far more problems for the US government than it has ever solved.
Like the nasty little Shah of Iran, they are NOT OUR FRIENDS, because what they do causes us problems.