Those diesels won't have much of a chance. The minute they start runing their engines to charge batteries, we'll pick up the low level sound. They have to do that many times during their transit to firing range. That of course doesn't take into account any coast watchers/satellites that monitor their comings and goings. From the instant that any of them leaves port, I'm quite certain that they'll have one of our nuke attack subs shadowing them (and they probably won't even know it).