According to an Iranian friend of mine, both China and Russia have long-standing cultural ties with Iran. More importantly, perhaps, they both have an economic interest in seeing oil traded in Euros:
"The Chinese and the Japanese will be especially eager to adopt the new exchange, because it will allow them to drastically lower their enormous dollar reserves and diversify with Euros, thus protecting themselves against the depreciation of the dollar. One portion of their dollars they will still want to hold onto; a second portion of their dollar holdings they may decide to dump outright; a third portion of their dollars they will decide to use up for future payments without replenishing those dollar holdings, but building up instead their euro reserves.
· The Russians have inherent economic interest in adopting the Euro – the bulk of their trade is with European countries, with oil-exporting countries, with China, and with Japan. Adoption of the Euro will immediately take care of the first two blocs, and will over time facilitate trade with China and Japan. Also, the Russians seemingly detest holding depreciating dollars, for they have recently found a new religion with gold. Russians have also revived their nationalism, and if embracing the Euro will stab the Americans, they will gladly do it and smugly watch the Americans bleed."
http://www.energybulletin.net/12125.htmlThis same article lays out some potential results for the U.S:
"Whatever the strategic choice, from a purely economic point of view, should the Iranian Oil Bourse gain momentum, it will be eagerly embraced by major economic powers and will precipitate the demise of the dollar. The collapsing dollar will dramatically accelerate U.S. inflation and will pressure upward U.S. long-term interest rates. At this point, the Fed will find itself between Scylla and Charybdis—between deflation and hyperinflation—it will be forced fast either to take its “classical medicine” by deflating, whereby it raises interest rates, thus inducing a major economic depression, a collapse in real estate, and an implosion in bond, stock, and derivative markets, with a total financial collapse, or alternatively, to take the Weimar way out by inflating, whereby it pegs the long-bond yield, raises the Helicopters and drowns the financial system in liquidity, bailing out numerous LTCMs and hyperinflating the economy."
The real question is, will Bush act like a cornered animal and attack despite the mutual defense alliance? He just might.