This initial volume in an ongoing study of the potential health consequences of service during the Persian Gulf War responds to a request from Congress to determine whether actions taken to evaluate health effects have been appropriate. It reflects the committee’s examination of health outcomes and related research efforts, women’s health and reproductive health issues, infrastructure and procedures for data collection, health services influences, the role of psychiatric diagnosis, and a review of the activities of boards and coordinating groups, as well as how issues stemming from involvement in the Persian Gulf might be relevant for possible future conflicts. While the committee continues its full-length study of the problem, the recommendations in this volume are for actions it feels should be taken immediately.