U.S.-Mexico Relations

The Gadsden Purchase Treaty resolved a border dispute between the United States and Mexico following the Treaty of Guadalupe Hidalgo. It transferred a strip of land in present-day southern Arizona and New Mexico to the U.S. for $10 million, ensuring free passage through the Gulf of California and…

The 1828 Treaty of Limits was a significant agreement between the United States and Mexico that established their shared border. It reaffirmed the boundary set by the 1819 Adams-Onis Treaty. While intended to prevent future disputes, Mexico viewed the U.S. recognition of Texas's independence…

The Plan of San Diego was a revolutionary manifesto drafted by Mexican and Tejano rebels. It aimed to spark an armed uprising in the Southwestern region to create an independent Hispanic republic, with the possibility of annexation by Mexico. The plan called for a "War Without Quarter,"…

The Bracero Program operated from 1942 to 1964 as a bilateral guest‑worker initiative between the United States and Mexico. It aimed to fill labor shortages in U.S. agriculture and railroads during World War II and beyond. It brought over 4.6 million Mexican workers under short‑term contracts.…