Let's not forget that the US was buying up USSR tech as much as it could during those times. The US bought the designs for the YAK-141, which helped the development of the F-35. Oh, and the Russians invented stealth.

I was wondering why you were trying to prove your invalid point that the USSR did not lead in innovation in some, limited sectors - looks like the only thing your account does is hate on Russia.

Which is fine, but I am kind of interested in the why.