title: Review of some studies of group behaviour relevant to global security.
abstract: Since the publication of Lionel Penrose's On the Objective Study of Crowd Behaviour, significant advances have been made in the understanding of intragroup and intergroup behaviour relevant to world security and peace. Some of these are reviewed in this article. Rational decisions in the complex and dangerous modern world may require understanding of the constraints and influence of both the cultural and biological backgrounds of human social existence.
authors.affiliation: Department of Physics, University of Sheffield, UK.
authors.forename: K
authors.initials: K
authors.lastname: Bullough
mesh_terms: D000818:Animals; D006126:Group Processes; D006801:Humans; D007391:International Cooperation; D008399:Mass Behavior; D011593:Psychology, Social; D012961:Sociology; D014857:Warfare