Hey, let's remember just who it was that sold F-14 Tomcats to Iran. Fortunately, it takes spare parts to maintain those and the source of those spares dried up rather quickly after the Iranian revolution.
The Iranians still fly and operate their F-14. They have invested a great deal of money in reverse engineering parts to keep those birds flying. I've served in the region and the Iranian U.S. supplied fleet of F-14, F-4 and F-5s are still very much up and running.