Specific rules of international humanitarian law contained in Additional Protocol I confer protection to the environment by prohibiting widespread, long-term and severe damage to the natural environment. In addition, other rules and principles ensure protection of the environment, though without mentioning it specifically. This is particularly the case with general customary principles, such as the principle of distinction and that of proportionality

Convention on the prohibition of military or any hostile use of environmental modification techniques, 1976

See also: ICRC activities > Assistance > Water and habitat