destruction by tanks and artillery creates new ecological niches says army ecologist wilfried korten pons foreman tank trails and bomb craters where frogs and newts can spawn. it's extraordinary the damage we see here from tank trucks you only see this in military training areas is especially important for nature conservation this is not static environmental protection habitats are constantly changing they're also valuable areas not in regular use by the military where nature can evolve organically to live. in the area is used less often they deploy sheep several 1000 sheep graze all summer long in the military training ground so that's what makes sheep really useful is that they get into all the corners under the bushes into parts of the woods we can't reach a machine can't do that the sheep saw prince grazing and droppings at the turf into the state that nature needs. the sheep of spent numerous summers in the military zone and are well used to it so shepherd karl-heinz kinkel. in there regularly generally whenever they're shooting even heavy fire you'd be amazed how fast they adapt if they do