Mexico’s road to independence was a long and tortured one. As a colonial possession of Spain, untold wealth was extracted from it, and shameful violence, pestilence, and famine were meted out to its indigenous inhabitants and most of the Spanish and mixed-race people born on its soil following the conquest.
A coalition of dissident factions eventually managed to throw off Spanish rule in 1821. However, the revolutionaries did not share a vision for independence for most of Mexico’s citizens, who were by and large uneducated, and/or of mixed heritage. Without a popular movement supporting their initiatives, the intellectual and military leaders of the new republic frequently fell out and fought against each other. Several of the first Mexican presidents were executed for treason by political rivals not long after leaving office. General Antonio López de Santa Anna emerged as the most dominant political leader of this period. He held the office of president several times, but even outside of it, was never far from the center of power.
As conservative Centralists gained power in the country, the first constitution was overhauled and the government took on a more authoritarian structure, leading to more strident resistance in many parts of the country. Beyond Ciudad Mexico (Mexico City) in all directions were large rural territories that had traditionally been ruled by heavy handed elites, often using forced labor, relocation, and cultural repression. As economic insecurity plagued the new government, multiple popular uprisings emerged, sapping the military’s resources.
One of Mexico’s largest territories was the province of Coahuila and Texas. Before independence, the Spanish Empire had struggled to populate this region. In order to solve this inherited problem, the Mexican government encouraged immigrants from the United States to settle in the area, providing cheaper land and temporary exemption from Mexican taxes. The policy stipulated that these immigrants must be Roman Catholics, but this was not something that could be enforced in reality. This created an unstable situation among many of the American immigrant communities and their Mexican and mixed-race Tejano neighbors. The government kept the immigrant Texans in check politically by keeping Coahuila, where Mexicans still had greater numbers, and Texas in one province. But American immigrants still dominated Texas demographically and economically. In order to preserve Mexican control of the area, the government abolished chattel slavery in 1829, (Texas being the only Mexican territory where it was still widely practiced, due to immigrants from the American South). This was meant to discourage immigration from the United States, which a year later was banned outright.
Eventually, calls for Texas secession from the Mexican Republic reached a critical mass, resulting in the establishment of the Lone Star Republic in 1836. General Santa Anna’s hardline tactics against the rebels only steeled their resolve and bolstered support from factions within the United States who supported the revolt with money and volunteers. Texan forces eventually captured Santa Anna and forced him to sign an agreement recognizing Texan independence and vow to cease hostilities. The general returned to Mexico to an irate government that refused to recognize the agreements.
While many Americans cheered the Texas revolution and urged their government to absorb the new republic into the United States, just as many saw it as a dangerous powderkeg that had resulted from reckless adventurism. The question was debated for years and argued against on the grounds that annexation of Texas would start a war with Mexico and introduce an unwelcome cultural element (Mexicans) into the United States. By the mid 1840s, Democrats gained more traction for expansionist policies. James K. Polk won the presidency in 1844 on a platform including annexation of Texas. Before he was even inaugurated, a bill was introduced to Congress and the state of Texas was created by 1845.
Map of Mexico in 1824 after the creation of the Federal District. Hpav7. Wikimedia Commons. 2009. Public Domain.
https://en.wikipedia.org/wiki/File:Mapa_de_Mexico_1824_2.PNG
As predicted, this sparked condemnation from the Mexican government which had never recognized Texan independence. Both nations began preparing for war. Polk sent troops into the disputed border region between the Nueces River and the Rio Grande, began mobilizing the US Navy, and sent special envoy John Slidell to Ciudad Mexico. When Mexican journalists learned that Slidell was in fact attempting to negotiate the purchase of more Mexican territory, New Mexico and California, it inflamed nationalist sentiment and many citizens threatened to revolt against President José Joaquín Herrera. The negotiations went nowhere.
Polk’s cabinet was still divided on declaring war. Several secretaries were not willing to vote for war until attacked by Mexican forces. This occurred when General Zachary Taylor, who had crossed Mexico’s stated border, the Nueces, led his troops to the Rio Grande. Soon after refusing the Mexican commander’s order to withdraw, a skirmish broke out between troops. Taylor reported 16 casualties. Polk argued before Congress that Mexico had invaded US territory and “shed American blood on American soil.” Congress swiftly declared war on Mexico in 1846. The Mexican government was defiant, but still divided amongst itself. The army overthrew the current president and brought General Santa Anna back to power.
The war saw battles in California, New Mexico, and Texas, but the major offensive took place in Mexico’s heartland. US forces invaded and occupied Veracruz. Civilian deaths far outnumbered military casualties. US newspapers reported shocking abuses against civilians by American troops. General Winfield Scott fought several battles on the way to Ciudad Mexico, and eventually conquered its defenses. The occupation of the ancient city was not an easy task, as the citizenry continued its resistance through acts of sabotage and guerrilla warfare. Most US deaths were the result of disease rather than combat.
The Treaty of Guadalupe Hidalgo was signed on February 2, 1848. The United States purchased California, New Mexico, and Texas, half of Mexico’s territory, for 18.25 million dollars. The treaty obligated the US to protect the property of the Mexicans in their new possessions by giving them US citizenship or just compensation if they decided to leave the country. In reality, only the most elite Mexicans were able to retain their wealth, while the majority of the population suffered political, cultural, and often violent repression, including frequent lynchings.
Despite this brutal history, Mexican and indigenous communities resisted erasure and fought to retain their cultures and communities throughout the American Southwest.
Sources:
Treaty of Guadalupe Hidalgo (1848)- The National Archives (US)
The United States-Mexican War, 1846-1848- United States Foreign Policy History and Research Guide
Mexican War Timeline- National Parks Service
“Santa Anna, the Centralized State, and the War with the United States.” The Course of Mexican History. Susan M. Deeds, Michael C. Meyer, William L. Sherman. Oxford University Press. 11th ed. 2018.