Dutch Waterline
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The Dutch Waterline was a series of water-based defences conceived by Maurice of Nassau in the early 17th century, and realised by his half brother Frederick Henry. Combined with natural bodies of wat
William III of Orange inspects the Waterline during the Franco-Dutch War
Aerial view of the fortified town of Naarden; with a good view of the star-shaped layout of the earth bastions, designed in the early gunpowder age to place outward guns to force an enemy to keep distance and thus to protect the town proper against shelling
Concrete shelters at Fort Ruigenhoek
Inundation area near fort Ruigenhoek
Stelling van Amsterdam
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The Stelling van Amsterdam is a 135-kilometre fortification line around Amsterdam, which would function as a national redoubt. It comprises 45 forts, as well as dams, dikes, locks, pumping stations, b
Dutch Waterline
…to the North Sea, almost into an island. In the 19th century, the Line was extended to include Utrecht. On July 26, 2021, the line was added to the Defence Line of Amsterdam to become the Dutch Water Defence Lines UNESCO World Heritage Site. Early in the Eighty Years' War of Independence against Spain, the Dutch realized…
Fort bij Spijkerboor (in 2015)
Engineer Cornelis Krayenhoff was involved in all defence lines around Amsterdam since 1787, in particular the Posts of Krayenhoff named after him.
Fort south of Spaarndam.
Muizenfort in Muiden.