As weaponry and warfare have become more complex and sophisticated, so the long-term effects have become more deadly. In Planet Earth Rosalie Bertell proposes that the key to understanding the impact of future wars lies in a close analysis of the past. She shows how the quest for military power has destabilized the delicate natural balance of the earth's ecosystem, causing widespread devastation in environmental, economic and social terms and calls for a new approach to security, which rises above national agendas to seek global solutions to a global problem.