The French in Mexico                     Maximilian Archduke of Austria      Princess Charlotte of   Belgium                                                                 and Emperor of Mexico                         Carlota, Empress of Mexico                  In October of 1861, the French, Spanish, and English governments signed The Treaty of London agreeing to form a military expedition to force the Mexican government to pay overdue debts to the three nations. By this point Mexico had been riven by civil war between the Conservatives and the Liberals for six years. No matter which side was in charge of the gover...