Category
page 1Historic defensive lines
Maginot Line
line of fortifications along the French/German border
Siegfried Line
German defensive line used in World War II

Danevirke
The Danevirke or Danework (modern Danish spelling: Dannevirke; in Old Norse: Danavirki, in German: Danewerk, literally meaning earthwork of the Danes) is a system of Danish fortifications in Schleswig-Holstein, Germany. This historically important linear defensive earthwork across the neck of the Cimbrian peninsula was initiated by the Danes in the Nordic Iron Age about AD 650. It was later expanded multiple times during Denmark's Viking Age and High Middle Ages. The Danevirke was last used for military purposes in 1864 during the Second War of Schleswig.
Hindenburg Line
fortified line of World War I
Bar Lev Line
chain of fortifications built by Israel
Molotov Line
system of border fortifications built by the Soviet Union
Fortress Europe
propaganda
Frontier Wire
Línea P
fortified line of defense built in the Pyrenees between 1944 and 1948 to prevent an invasion of the Spanish territory.
Taunton Stop Line
World War II defensive line in south west England