The impact and disastrous consequences of war remain a painful and often underexposed topic in the debate on global warming. Access to raw materials is often the root cause of conflict and ecological warfare, such as the draining of rivers, is increasingly used as an instrument of violence. Military exercises and operations waste enormous amounts of energy and leave behind hallucinatory amounts of debris. It is both cynical and ironic, but some exercise areas and war zones are so polluted that no one is allowed to enter them. They are instead declared nature zones where nature is given free rein and can heal.