 
 <prompt> Napoleon III na Emperor of which forces from 1825 reach 1870? Given di last question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```The main reason wey cause the war na because of the candidacy of Leopold of Hohenzollern-Sigmaringen, wey be Prussian prince, to become king for Spain. France dey fear say dem go surround dem with alliance between Prussia and Spain. The Hohenzollern prince candidacy come out sake of French diplomatic pressure, but Otto von Bismarck provoke the French make dem declare war by changing telegram wey William I send. Bismarck release the Ems Dispatch to the public, make am look like say the king treat the French envoy anyhow, wey make public opinion for France vex well well.``` 