The Medal for Acultzingo is part of several medals created during the occupation of Mexico by French troops between 1862 and 1867.
On July 12 1859, Juárez decreed the first regulations of a new reform: “The Law of Nationalization of the Ecclesiastical Wealth.” The civil war between Liberals and Conservatives that followed (Civil War of the Reform) severely damaged Mexico’s infrastructure and crippled its economy. In view of the government’s desperate financial straits, Juárez canceled, in 1861, repayments of interest on foreign loans that had been taken out by the defeated conservatives.
Spain, Britain and France, angry over unpaid Mexican debts, sent a joint expeditionary force that seized the Veracruz Customs House in December 1861. Spain and Britain soon withdrew after they realized that the French Emperor Napoleon III intended to overthrow the Juárez government and establish a Second Mexican Empire, with the support of the remnants of the Conservative side in the Reform War.
Faced with US opposition to a French presence and a growing threat on the European mainland from Prussia, French troops began pulling out of Mexico in late 1866.