As a systematic terrorist tactic, suicide attacks are a relatively new phenomenon. The article surveys the dimensions of this phenomenon, influencing factors, and counter-measures. After an overview of the political and strategic significance of this tactic, the article discusses the distribution of suicide attacks around the globe, arguing that although suicide attacks have grown dramatically in recent years, the bulk of them occur in foci of acute violent conflicts. A description is also provided of how Palestinian groups prepare for suicide attacks, emphasising the role of community support and the perpetrating group in the process. The article concludes with a brief discussion of counter-measures.