Another work of Appian's history which still survives mostly extant is called "The Foreign Wars". This history describes the wars the Romans fought against other cultures throughout their history. The mostly extant work narrates the wars in Spain, the Punic Wars in both Italy and Africa, the wars against the Seleucid Empire, and the Mithridatic Wars. Several small fragments also survive, describing the wars against the Samnites, Illyrians, Macedonians, Numidians, and the Gauls. Especially notable is this work's ethnographic structure. Appian most likely used this structure to facilitate his readers' orientation through the sequence of events, which are united only by their relationship to Rome. For example, the chapter on Spain recounts Roman history in Spain chronologically with the Romans' first intervention in Spain during the War with Hannibal. The book goes on to describe the Roman conquest of several regions of Spain, followed by their wars with Spanish tribes and the Numantine War. The chapter on Spain concludes with the war against Sertorius in roughly 61 BC. Likewise, the chapter on the Hannibalic wars only recounts the battles that took place on the Italian Peninsula during the second Punic war, while the chapters on the Punic War recount all the action that occurred in northern Africa during the first and second Punic war.