What it did not foresee was the speed with which Saudi Arabia would see its high ambitions defeated or frustrated on almost every front. But in the last year Saudi Arabia has seen its allies in Syrian civil war lose their last big urban centre in east Aleppo. Here, at least, Saudi intervention was indirect but in Yemen direct engagement of the vastly expensive Saudi military machine has failed to produce a victory. Instead of Iranian influence being curtailed by a more energetic Saudi policy, the exact opposite has happened.