The role of nationalism and militarism that plays in the build up to war is that nationalism does not only contributed to the beginning of war but extends it. Each country prove their dominance and power by nationalism and pride over each other. On the other hand, the evidence <span>of militarism includes building huge armies, developing military technology. Thus, it builds a big thing in war.</span>
The answer in this question is Incas. The Inca empire or Incan empire is the largest empire in pre- Columbian American and also it is the early civilization that had a well organized unified empire with an elaborated system of roads covering more than 10,000 miles.