When a rising power threatens to displace a ruling one, the most likely outcome is war.In this razor-sharp analysis, Harvard scholar Graham Allison examines the phenomenon known as Thucydides's Trap, which is currently playing out between the world's two biggest superpowers: the US and China.Through uncanny historical parallels, Destined for War shows how close we are to the unthinkable. Yet, stressing that war is not inevitable, Allison also reveals how clashing powers have kept the peace in the past - and what painful steps international leaders can and must take to avoid disaster.