The Department of Defense (DOD) is committed to transforming the nation''s armed forces to meet the military challenges of the future. One approach to achieving this transformation is by leveraging advances in science and technology. New technologies and innovations are integral to today''s military actions, and associated changes have rippled through all aspects of operations, highlighting the need for changes in policies related to military personnel. At the request of the Force Chief of Naval Operations, the NRC reviewed the military manpower and personnel policies and studies currently underway in the DOD and developed an implementation strategy for the Department of the Navy''s future military manpower and personnel needs. This book presents an introduction to current personnel policies of and concerns facing the Naval forces; an assessment of demographic, technological, and other forces affecting future personnel needs and availability; a summary and assessment of previous studies; an examination of the role of research tools in implementing personnel policy change; and an analysis of obstacles to and strategies for transforming the Naval forces.