Kaliningrad: the ring of Königsberg fortifications in the mid-19th century

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Königsberg (now Kaliningrad) was founded as a castle and remained a fortress city until the end of World War II. In military science, Königsberg was considered a "double tête-de-pont," meaning "a coastal fortress on both sides of the river." The city began with a castle in 1255 and developed a fortification-defense structure throughout almost its entire history: the Königsberg fortress-castle, city walls and defensive ramparts, city gates, forts. It developed so extensively that, except for World War II, it was never actually needed since the 13th century. Nevertheless, Königsberg responded promptly to every movement in European military engineering thought, building or rebuilding various fortresses, redoubts, outer rings of forts, or systems of pillboxes. If we mentally lay out all these structures into a fortification chain, we will see the following picture of the evolution of the fortress city.

Jermaine Jermaine

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