Why is the Nuclear Triad needed if nuclear subs can’t be realistically countered?
In: Technology
It’s not. The primary reason for the Triad is that each of the US’ Armed Forces wanted their own nuclear capability.
That said, nuclear subs do have weaknesses. Their missiles are smaller, which means they have a smaller payload and a shorter range, which means they need to be fired from close to the target. Somewhat paradoxically, immediately after launch is the easiest time to intercept ballistic missiles, when it’s still accelerating and before it’s separated into a dozen warheads that need to be independently destroyed.
And the three parts of the Triad do serve different functions. Nuclear SLBNs are undetectable prior to launch, Nuclear ICBMs are designed to be impervious to a first strike, and Nuclear Stealth Bombers are able to penetrate an enemy’s air defense system much easier than ballistic missiles can. We’ve never had a nuclear war, so we don’t actually know which method works best, so the US maintains all three to be on the safe side. Especially because who knows when someone invents a type of sensor that allows submarines to be found easily. Kinda basic don’t put all your eggs in one basket deal
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