Submarine (1900s): Holland boats — Section 624: Holland boats

From Holland boats and U-boats to nuclear deterrent submarines -- a history of a type, not a guide to diving, hunting, or building one. Chang Bogo / KSS line -- industrial history Practical military submarines arrived with Holland and early-century types; they became a strategic fact in 1914-18 when German U-boats threatened Britain's food. Unrestricted submarine warfare (1917) helped bring the United States into the First World War. The type's politics were always about merchant lives and law, not only about naval glory.

1939-45 repeated and enlarged the Atlantic fight; US boats in the Pacific destroyed Japan's merchant marine -- a campaign of tonnage, historically described. Nuclear propulsion (Nautilus, 1954) and then ballistic-missile submarines recast the type as a deterrent holder. This page names that arc. It does not teach how to dive, hide, or attack.

English memory is Das Boot, U-571 myths, and a "silent service" brand. Korean memory includes 1950s UN submarine-adjacent war at sea and a later ROK KSS industrial line (Chang Bogo and successors) -- a defensive force-structure story, not a live order of battle. Duration in this atlas is long; the type has not left.