Definition: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Input: The defense of one of the countries involved lasted for five years until the final defeat at Cerro Cora. A secret alliance made with Velancio Flores, an enemy o the Blanco regime, spelled the end for the eventual losing side. Though declaration of war against Bartolome Mitre had already sealed the fate of Francisco Solano Lopez and his country. Costing Paraguay almost a third of its male population, FTP, identify this conflict fought between 1865 and 1870 and named for the number of nations allied against Paraguay.
Output:
History