Supergroove,
It was almost the end of the conflict before they acknowledged that fact. First blood went to Iraq... Argh! And when they did acknowldege it, it wasn't broadcast. However, that incident did give impetus to the F-22 program. The F-15 is one of the most capable aircraft in the world, but it just can't fly that high, and it's avionics are starting to get dated. Faced with overhauling the F-15 to get it to be the best plane again, or invest in next generation technology, well, that was a no-brainer.
The MIG-25 is an older design, but for high altitude combat plane, you can't find another one that does it so well.