In the following years, the members of the Holy Alliance continued to battle against liberal political change.1 While Metternich’s system proved quite effective in central Europe, at least until 1848, the monarchists failed to stop dynastic change in France in 1830 or prevent Belgium from winning independence from the Netherlands in 1831.

The most dramatic challenge to conservative power occurred not in Europe, but overseas in South America. In the 1820s, South American elites rose up and broke away from the Spanish crown and established a number of new republics based at first on liberal, Enlightenment ideals. The leaders of the revolutions were primarily wealthy Creoles, direct descendants of Spanish parents born in the Americas. The well-established and powerful Creoles — only about 5 percent of the population — resented the political and economic control of an even smaller elite minority of peninsulares, people born in Spain who lived in and ruled the colonies. The vast majority of the population, composed of “mestizos” and “mulattos” (people of ethnically mixed heritage), enslaved and freed Africans, and native indigenous peoples, languished at the bottom of the social pyramid.

By the late 1700s, the Creoles had begun to question Spanish policy and even the necessity of further colonial rule. The spark for revolt came during the Napoleonic Wars, when the French occupation of Spain in 1808 weakened the power of the autocratic Spanish crown and the Napoleonic rhetoric of rights inspired revolutionaries. Yet the Creoles hesitated, worried that open revolt might upend the social pyramid or even lead to a slave revolution as in Haiti (see "How did slave revolt on colonial Saint-Domingue lead to the independent nation of Haiti?" in Chapter 19).

The South American revolutions thus began from below, with spontaneous uprisings by subordinated peoples of color. Creole leaders quickly emerged to take control of a struggle. In the north, Simón Bolívar — the Latin American equivalent of George Washington — defeated Spanish forces and established a short-lived “Gran Colombia,” which lasted from 1819 to 1830. Bolívar dreamed of establishing a federation of South American states, modeled on the United States. To the south, José de San Martín, a liberal-minded military commander, successfully threw off Spanish control by 1825.

Dreams of South American federation and unity proved difficult to implement. By 1830, the large northern state established by Bolívar had fractured, and by 1840 the borders of the new nations looked much like the map of Latin America today. Most of the new states initially received liberal constitutions, but these quickly gave way to a new political system controlled by caudillos (caw-DEE-yohs), or strong men, sometimes labeled warlords. Often former Creoles, the caudillos ruled limited territories on the basis of military strength, family patronage, and populist politics. The South American revolutions had failed to establish lasting constitutional republics, but they did demonstrate the revolutionary potential of liberal ideals and the limits on conservative control.