The Office of the Secretary of Defense asked the RAND Corporation to assess the Department of Defense (DoD) child-care demand formula as a tool for translating information on military families into measures of potential child-care need and to suggest ways that the tool might be improved. The authors assess the validity of the DoD formula in meeting child-care needs, analyze the factors that influence key child-care outcomes, and address the broader issue of how DoD can refine its goals for military child care.