Twisted Sister and Hornitos are not going to take it with Mariachis.
History of Cinco de Mayo: Battle of Puebla
In 1861 the liberal Mexican Benito Juárez (1806-1872) became president of a country in financial ruin, and he was forced to default on his debts to European governments. In response, France, Britain and Spain sent naval forces to Veracruz to demand reimbursement. Britain and Spain negotiated with Mexico and withdrew, but France, ruled by Napoleon III (1808-1873), decided to use the opportunity to carve a dependent empire out of Mexican territory. Late in 1861, a well-armed French fleet stormed Veracruz, landing a large French force and driving President Juárez and his government into retreat.