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What submarine class has had the greatest impact on history?

Forum.Arny Navy & Warships — Naval History & Submarines

Nate_R

I’ve been reading up on submarines lately (mostly WWII and then the Cold War stuff) and I can’t decide what “submarine class” really changed history the most. Part of me says the German U-boat types because of the Battle of the Atlantic, but then nuclear subs like Nautilus feel like a total turning point, and boomers like Ohio/Typhoon basically rewrote deterrence. I’m not asking which is the “best” sub—more like: which class shifted strategy, politics, or outcomes the most? Curious what you all think and why.

Sky

If you ask this question again in 20 years, the answer might be a class of extra-large UUVs rather than a crewed submarine.

But historically, the classes that opened the door to that future are the nuclear attack subs that became quiet, sensor-heavy, and integrated with broader command-and-control. The “impact” is the shift toward undersea information dominance—detect first, decide first.

Right now we’re watching crewed subs become motherships for unmanned systems. That’s why I’d argue Nautilus is the ancestral turning point (endurance and mobility), and modern SSNs/SSBNs are the template for how autonomous undersea warfare will be structured: persistent, stealthy, and networked—just with fewer humans in the loop over time.