the US, 21% of endangered species live on DoD land which forms only 3% of the country. A Polish study showed that the training was not significantly detrimental to biodiversity. The major factor in this was the lack of human intervention for lengthy periods of time.

In Germany, it has been found that wolves moving into new areas will invariably settle first in military training areas before spreading out. This may be because there is less poaching and the hunting areas tend to be far larger than those on private land, so they are less