Historians have long debated whether civilisation rose from the ashes of warfare or was culled through peaceful trade. It's a contentious question because it obviously speaks directly to human nature. In that case, that long-standing question can be answered without the need for more archaeological research or dirty digging. Conflict is a gamer's nature and nowhere is that more apparent than in Civilization V where the march of troops and wafting gun smoke highlight the appeal of new combat elements designed to improve strategy gaming's most recognisable franchise.