Ecoterrorism is a form of
sabotage intended to hinder activities that the ecoterrorist considers harmful to the
environment. Ecoterrorists belong to the
Direct Action school of thought. An example of ecoterrorism is the destruction of tree felling equipment (e.g. spoiling fuel). Radical ecoterrorists sometimes engage in
tree-spiking, a practice which can endanger the life of the treecutter.
Another form of ecoterrorism is political, intended to damage an enemy's natural environment. A common example is the military practice of burning conquered lands.