Dragon’s Teeth in the Forest
Most open areas in the forest had this type of obstacle. Standing in the middle of rows of dragon’s teeth and looking at the German side some 200-500 yards will often reveal where a bunker was that would keep the obstacle under observation and fire if necessary. Obstacles not covered by fire are almost worthless. The Germans also made extensive use of anti-tank and anti-personnel landmines.
Dragon's Teeth in the Hürtgen Forest