sõjalisel eesmärgil ehitatud, paigaldatud või lõhatud tõke, mis on mõeldud olemasoleva maastiku tugevdamiseks, et vaenlast segi paisata, paigal hoida, kõrvale juhtida või seisata
obstacle specifically constructed, emplaced, or detonated through military effort and designed to strengthen existing terrain to disrupt, fix, turn, or block enemy movement
Obstacles that are specifically created as obstacles are sometimes called reinforcing obstacles. This category includes constructed obstacles, demolition obstacles, IEDs, and mines. [JP 3-15]