The funniest thing about this is how colossally Russia screwed Iran. Iran sent over thousands of drones and dozens of drone pilots for use in Ukraine. No doubt Russia paid for it, but probably not as much as Iran wish they had. 300 extra Shaheds would have made the interception math ugly even last year.
Instead, they send all their inventory north so that Moscow can spend less money to blow up shopping centers and school houses. Meanwhile, the Iranians lose a credible deterrent.
Cui bono? Just asking...
My suspicion is that Russia, the UK, and the US have a multi-hundred year competition going for who can be the worst ally and the US is in a commanding lead. Them Rooskies had to try to catch up.