This article discusses a critical factor that has influenced Israel's politics, society, economy, and public discourse since this state's establishment in 1948, and particularly after the 1967 war: a highly informal but at the same time very potent “Security Network.” This Network has been critically involved in the political, social, economic, and cultural spheres, and its impact is felt in major and lesser issues. It is made up of actors who (a) are connected by informal, nonhierarchical ties; (b) share common values and perceptions regarding Israel's security and the ways to promote it; (c) have identical or similar individual and collective interests; and (d) are capable of joining hands to influence policymaking on different levels and in various spheres of the country's public life.