Abstract: The Department of the Air Force offers suicide prevention and response programs, as well as mental health and resilience programs, to prevent suicide among airmen. RAND's research portfolio on suicide prevention in the U.S. Air Force centers on the evaluation of mental health and upstream targets for suicide prevention. This research has addressed such topics as identifying suicide risk and suicide outcomes in the 2018 Department of Defense Health Related Behaviors Survey, assessing upstream targets for suicide prevention (i.e., the underlying social, economic, and environmental factors that contribute to suicide risk), understanding the mental health conditions and harmful behaviors that increase suicide risk, and evaluating the implementation and effectiveness of Air Force resilience, suicide prevention, and suicide postvention programs. This publication summarizes select RAND research in these areas.