S-400 is possibly the best AA system in the world that is in serial manufacturing (there’s also S-500 which is even better, but afaik still in testing). For comparison, in 2019 Iran shot down most modern US stealth drone worth 200 million with old Soviet missile from 60’s and using domestically produced radar and guidance system.
Is there something special about the technology, or is it just that Iran has poor air defense and generic tech would fix that?
S-400 is possibly the best AA system in the world that is in serial manufacturing (there’s also S-500 which is even better, but afaik still in testing). For comparison, in 2019 Iran shot down most modern US stealth drone worth 200 million with old Soviet missile from 60’s and using domestically produced radar and guidance system.