As belligerent parties, non-State armed groups (NSAGs) contribute to environmental damage in non-international armed conflicts. Drawing from the actual practice and doctrine of NSAGs, this article unpacks the legal and policy framework for engaging them on the protection of the environment. It analyzes the international humanitarian law rules protecting the environment binding on NSAGs. To improve environmental protection, a model of environmental responsibilities under international human rights law and international environmental law based on the NSAG's level of territorial control is suggested, as a matter of policy. This article then explores how to engage NSAGs on the legal and policy framework identified and proposes a model unilateral declaration for the protection of the natural environment.
