The kill zone is an element of point ambush in which a military unit targets a single area with offensive fire such as mines, demolitions and section-level weapons.The kill zone may be bordered by obstacles, traps or indirect fire (artillery or mortars) to keep the enemy from escaping.[7] A military unit that finds itself suddenly under fire in an enemy kill zone must immediately take action against the ambushers.Terrain that keeps the enemy from moving out of the kill zone is useful for isolation, otherwise the ambushers will wish to place obstacles or munitions at the borders of the selected area.To avoid the kill zone, a patrol may "fan out" and travel with elements spread out left and right, rather than staying solely on a road or track.Soldiers who take point must keep an eye out for signs of a kill zone, such as disturbed ground, obstacles and restrictive terrain.