This project is designed to assist the U.S. Naval Health Research Center Department of Defense HIV/AIDS Prevention Program (DHAPP) in developing and implementing an HIV Behavioral Health Surveillance Program for the armed forces in one participating DHAPP nation, Liberia. RTI International is supporting the military population of the Armed Forces of Liberia (AFL) in an HIV Behavioral and Seroprevalence survey with the following objectives: (1) Provide technical assistance and training for the design and implementation of an HIV seroprevalence and behavioral risk surveillance study within the AFL; (2) Assist DHAPP with the adaptation of an HIV behavioral risk surveillance questionnaire appropriate for the AFL; (3) Develop data collection and management tools; (4) Provide technical assistance to support the procurement of data collection supplies and the logistics necessary for field implementation; and (5) Facilitate the dissemination of findings to inform AFL policy for improving prevention, care, and treatment.