Why did the french occupation of mexico end?

The French occupation of Mexico ended because the United States' assistance to the Mexican army was turning the endeavor into a costly one for France. Napoleon III felt that France's military interests were better served elsewhere. read more

When Mexico City fell to French forces, the Mexican legitimate government and its supporters resorted to guerrilla warfare. This made the occupation of Mexico a very difficult proposition, especially if you take into account the large size of Mexico, which is three and a half times the size of France. read more

Initially supported by Britain and Spain, the French intervention in Mexico was a consequence of President Benito Juárez's two-year moratorium, on 17 July 1861, of loan-interest payments to French, British and Spanish creditors. read more