The massive attack launched on the critical Saudi Aramco oil processing facilities at Khurais and Abqaiq early on 14 September was not just another drone strike by the Houthis – as the Yemeni movement claimed – but in all likelihood was launched from Iran, reflecting the extent that the Islamic Republic has emerged as a significant military power. As well as placing unexpected new pressures on the global oil market, it pitched Crown Prince Mohammed Bin Salman (MBS) and the Saudi leadership into yet another crisis.