or oth , radars look like Russians but they are not the same ,
There is enough resemblance to suggest some degree of technical cooperation.
and have you wondered why what Russians gave us have the range restricted inside our country and what or technician managed to product have a range well beyond Europe border ?
Those OTH radars' range isn't limited to Iran's borders.
they don't care if Iran get balkanized unless it clash with their interest , their nearest ally in middle-east was Syria and look did they were concerned about its balkanization or the country being bombed day and night by a rouge state ?
Yes, they were hence why they joined Iran in pushing back the NATO- and zionist-backed insurgency.
As for the zionist air strikes, they don't even begin to scratch the status quo in Syria. With Russia present in Syria, the zionist cannot do what it'd take to achieve their strategic objective of replacing the current government in Damascus with an anti-Iranian one.
Iran falling will be seen as a direct existential threat by Moscow, because NATO will put russophobic elements in control of the entities resulting from Iran's break up. As they've endeavored to do in every country bordering Russia.