The New Dutch Waterline is actually an extension of the Old Dutch Waterline, click here for more detailed information about the Old Dutch Waterline. The New Dutch Waterline also works with many forts, fortified towns and inundations (the intentional flooding of land). This line is also intended to protect the rich western part of the Netherlands with flooded polders, with Utrecht as an addition to the old line. Click here for more information about how a waterline works.
The use of the New Dutch Waterline
The New Dutch Waterline has been under water three times due to inundation. The first time was in 1870 during the Franco-Prussian War, the second time from 1914 to 1918 during the First World War and the third time in 1939-1940 for the Second World War.
The last users of the line were the Germans to stop the liberators of the Netherlands in 1944-1945.