Lol why you guys comapring both Iran and China technological advances?? Both nations doesn't have any kind of hostilities and just have normal friends, and also comapring Iran with China is just like comparing a T-14 Armata with M1A1 Abrams, China is next emerging super power in world stage...
I don't think Russia would just let Iran alone, if the US succesfully overthrow Iran than it would lead Russia in dangerous situation cause US can use Iran as base for attacking Russia
Possibly Syria only got S-300PS or S-300VM. PS is used to be use by Belarus and East German meanwhile S-300VM is now being used by Egypt not all Russian S-300 is PMU-2 version maye
Do you have any YT channel if so do you recognize Persian Aryanism YT chnnel if he sees this he will like you
Youtube channel link
https://www.youtube.com/channel/UC6Czb_lU0b6pekhCo5Z1RQA
It will be 3rd Khordad because Iran wouldn't be risking it's S-300PMU-2 to Syria that system is to valuable for Iran and it's job is protecting Bushehr,Tehran and Bandar Abbas and B-373 is will be entered services at 2019 and you already know the word of "at the end of current Iranian year"...
Of course Russia doesn't give any it's export aircraft IFF even back in Soviet Union!
I already tell it that Putin and Russia is a bootlicker they work for Israel interest and they will i assured you that Russia would sold Syria and Iran to the west
You talking about Basij or regular army?
And btw Iranian army is still using M1 helmets from WW2 US army and also @Hack-Hook do you know average flight hours of IRIAF pilot per year?