The problem in the current Iran standoff is the Bush regime's inclination to talk and try to walk like it was the only superpower on the block.
The US strategy of reaching out for oil in the Middle East has pushed China and Russia into having Iran as a strategic oil ally, which is the only thing stopping a sensible long term isolation strategy against the religious fanatics.
More unilateral Bush initiatives are as useful to the world stability as a bicycle to a fish.