'Against the IRGC'? Hm...

Then, please, be so kind and explain me: how comes the same Iranian defence sector that 'couldn't calculate 2+2' in 2015, all of a sudden…

'Against the IRGC'? Hm...

Then, please, be so kind and explain me: how comes the same Iranian defence sector that 'couldn't calculate 2+2' in 2015, all of a sudden began turning out operational UCAVs, in 2016....

Or, do you serously think this has 'happened by accident'?

As for sources: first-research, dating back to 2016-2017. This was one of first results:

https://warisboring.com/iran-is-building-air-defenses-against-stealth-aircraft/