Pf course I meant against the average enemy the US or NATO might act; i.e. second or third line countries with not very advanced armies, or if having some advanced units, at least not a big amount of them. I think that war against any nuclear power is nowadays ruled out for two reasons:
1) Interdependency and globalization: China & Russia, as nuclear powers whose interest could eventually collide with the US would probably in case of war act on a different level: Economic war, energy war, food supply war (Russia is a big net importer of grain from north america IIRC) etc. and besides I don't see how they would really even get to lock horns seriously.
2) Even in the unlikely case of entering a war, the ultimate resource of nuclear war when cornered would probably make the conventional war unnecessary.
So I was mainly referring to countries like Iran, Venezuela, African countries, etc. against which a limited conventional war could eventually happen. Isn't the F-15 a good enough aircraft against them? I think it should be, and even if those countries managed to get a bunch of advanced russian fighters, I don't think they would play a big difference if everything else around them is more outdated and they haven't the electronics supposrt you mentioned.
But someone correct me if I wrong
