Dragon's teeth (fortification)

Cusp line is a colloquial name for the cusps or tooth-shaped tank barriers made ​​of concrete, as used for example on the West Wall.

Cusp line and anti-tank ditch at the fortress front Oder- Warta Bow

Cusp line as it is in many places today to find Paderno (Saarland)

Cusp line near Aachen, part of the Western Wall

Dragons Teeth of the GHQ Line in the United Kingdom (2006)

Troops of the U.S. Army cross the 1944 West Wall