Combined Arms Warfare in the Spanish Civil War: The Assault on the Republican Defence Line at Fatarella Ridge

Abstract In terms of approaches to warfare, the Spanish Civil War (1936–39) has traditionally been seen as a transition between the First and Second World Wars. The idea is based on several reports written by designated observers from Germany, Italy and the Soviet Union. Certainly, some of the tactics and equipment of these armies made their first appearance during this conflict. However, this view raises several questions, as the experience and tactics observed in the Spanish battlefields often do not match those seen during the first phases of the Second World War. Were the innovations adopted by all sides and units? How did the new tactics influence the outcome of the conflict? Which tactics were tested and discarded for better ones? It is difficult to address these questions using only textual sources, given the particularities of this war. To improve our understanding of the evolution of warfare, we need to combine textual sources with archaeological data and spatial analysis, and integrate the knowledge. This study examines the assault on Republican positions at Fatarella Ridge during the last phase of the Battle of the Ebro (1938). In particular, the work explores, using spatial analysis of archaeological and textual sources, the level at which combined arms warfare was applied during the final months of the war. The use of an integrated methodology has allowed us to reconstruct the engagement and provides interesting insights into the evolution of tactics and fortification during this conflict.