Originally posted by aldo_14
Only if you're attacking an equal superpower (if any still exist), though. I doubt even the '2nd rate' nuclear powers like UK and France would be able to respond with anything like a devastating counter-attack.
France has the Le Redoubtable and Le Trimuphant-class ballistic missile submarines; twenty and twenty-four missile tubes, three warheads to a missile. The Brits have the capablity to nuke the US into oblivion. We should know: they use our Trident missiles for their SSBNs. Russia has been set up for such an eventuality for decades. China only has the one SSBN, an inferior one at that, but sure as hell they can destroy every major city on the western seaboard.
You see, you have to understand: survivablity of the SLBM component of the nuclear arsenal is not based on the submarines being merely hard to find: you have to find
all of them. Any single Western-made or Russian-made SSBN has the capablity to devastate any nation on Earth. The Chinese could take out about twelve major US cities, possibly more: it's not public information whether their SLBMs have multiple warheads.
Originally posted by aldo_14
Granted, submarines do possess the ability to survive and respond, but it would be dependent upon that submarine not being tracked and hunted via satellite (i.e. to relay co-ords to hunter-killers in the war; I think this is already possible), an order being made in time to said sub, and indeed that the target country has subs.
...eh? I don't think so. If you refer to laser-based non-acoustic ASW, the idea was examined in the mid-80s and discarded as completely unfeasible. If close to the surface,
very close, a submarine can be tracked by infrared emissions, but the boomers are creatures of the abyssal zone. They never come up. MAD, Magnetic Anomaly Detection, gear is completely ineffective at orbital distances; even aboard low-flying aircraft it isn't always effective against deep-diving submarines.
The SOSUS network of ocean-floor sonars is located in fixed points, the G-I-UK gap and Bering Sea, with a scattering off the Eastern and Western seaboards. They're not 100% effective, and in any case missile subs know them and stay away from them.
Essentially, unless you put a tailer on the guy as he's leaving port and follow him around the whole time while remaining undetected, you're not going to know where he is. Odds are about 50/50 you'll lose him at some point anyways.