The defence line was placed from Hoptrup at the Lillebält to the island of Römö. On the 50 kilometres
 over 900 rooms, batteries and bunkers were constructed.
 The defence was prepared in drills during 10 years and everything had only one purpose. To stop an
  English attack launched from Esbjerg at the west coast, promised by the English king to the French
 foreign minister in 1904. 
 The defence line was directed north, and could be seen as a defence of Kiel, Kaiser Wilhelm Kanal and
 finally the road to Berlin.
 The line is well prepared and is following all the military doctrines of the time.

 Practically all the artillery is hidden behind the hills in the area, the infantry is on the front sides of the
 hills and the enemy is forced to move forward in the areas where the defence is strongest. 

 The Line is placed on the narrowest place in Southern Jutland. There are a lot of moors and lakes in
 the area, making the advance difficult.
 The lakes were prepared to make a major flooding in the area.