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U Submarine

History

Dated history of Submarine (1900s-present (as a war type; ancestors earlier)) in Atlantic 1914-45, Pacific 1941-45, then a nuclear-deterrent undersea.

Educational history. Casualty figures are documented ranges. This is not operational advice, a ranking of nations, or a how-to for weapons or coups.

Holland and the 1914 surprise are the start. Law is in the first paragraph, not the last.

Lusitania is a memory hinge that still needs the wider 1917 policy.

Timeline

  1. Holland boats

    Practical military types spread.

  2. Lusitania

    A political shock of U-boat war.

  3. Unrestricted & US entry

    A legal-political hinge.

  4. Atlantic crisis and turn

    Donitz vs convoy/air/intel.

  5. US Pacific boats

    Tonnage against Japan.

  6. Nautilus

    Nuclear propulsion.

  7. First SSBNs

    Deterrent under the sea.

  8. Cold War close calls

    Public collisions and crises -- named as history.

  9. ROK Chang Bogo

    Industrial chapter opens.

  10. Kursk sinks

    A civilian-memory shock of the type.

Eras

First U-boat war

Law and food.

Treaty and rearmament

Limits and cheats.

Second U-boat / Pacific

Tonnage wars.

Nuclear / SSBN

Deterrent type.

More operators

ROK KSS; accidents as memory.

Milestones

1917 politics

U-boats and US entry.

Pacific tonnage

A logistic decision.

SSBN

Hidden deterrent.

SSBNs did not retire the diesel boat; many states still fund both kinds -- a historical inventory fact.

ROK KSS is a chapter, not a climax.

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