The Army National Guard (ARNG) has increasingly become an important part of US national defense and at times, during the recent Iraq and Afghanistan wars, comprised from 30% to 40% of the Army’s fighting strength. The use of reservists in these wars has resulted in behavioral health and related problems among reservists, including suicide. Questions were posed regarding the demographic characteristics of suicides, factors associated with suicides, similarities and differences of ARNG suicides compared to those observed in other Army components and in the civilian population, and whether ARNG suicides represented one homogenous group or several groups different from one another. Several studies were initiated, relying on several data sets. This chapter summarizes findings of these analyses, responding to broad questions of major policy importance. The chapter concludes by offering possible directions for future practice and policy concerning suicide prevention.