"So what does Iran have that Russia wants to negotiate for? Or N.Korea for that matter???"
N. Korea got already a few missiles that during the test firing landed in the Russian side of the Sea of Japan (one landed just a few dozen miles away from the Russian Port of Nakhodka).
I guess Putin need more missiles coming out from N. Korea or nuclear armed Shaheeds coming out from Iran to aid N. Caucasus Islamist insurgency -:))))