Yes. I do not follow this Yemen thing. I know that the Saudis back one side and the Iranians back the other side. The US was arming the Saudi side I think. Israel is the real winner because the Saudis are going to hit Iran back.
They say the drone were Iranian but the Iranians deny it. Not a smart move by the Iranians. I recall Iran backed Hezbollah had stock piled lots of explosives near London, fuel oil and fertilizer, 50% more than Timothy McVeigh used. The Brits kept it quiet to keep Obama happy perhaps.
The Iranians have some support in the EU on their nuclear deal, then they go and do this.