Zone to Defend or ZAD (French: zone à défendre) is a French neologism used to refer to a militant occupation that is intended to physically blockade a development project. By occupying the land, activists aim to prevent the project from going ahead. The acronym "ZAD" is a détournement of "deferred development area" (from French: zone d'aménagement différé). The ZADs are organized particularly in rural areas with an ecological or agricultural dimension, although the name has also been used by occupations in urban areas, for example in Décines-Charpieu and Rouen.