the part of mexico north of the rio grande used to be called
Republic of Texas
title: Rio Grande text: early 1840s, the river marked the disputed border between Mexico and the nascent Republic of Texas; Mexico marked the border at the Nueces River. The disagreement provided part of the rationale for the US invasion of Mexico in 1846, after Texas had been admitted as a new state. Since 1848, the Rio Grande has marked the boundary between Mexico and the United States from the twin cities of El Paso, Texas, and Ciudad Juárez, Chihuahua, to the Gulf of Mexico. As such, crossing the river was the escape route used by some Texan slaves to seek freedom. Mexico had liberal title: Rio Grande text: Rio Grande The Rio Grande ( or ; , or simply Río Bravo) is one of the principal rivers (along with the Colorado River) in the southwest United States and northern Mexico. The Rio Grande begins in south-central Colorado in the United States and flows to the Gulf of Mexico. Along the way, it forms part of the Mexico–United States border. According to the International Boundary and Water Commission, its total length was in the late 1980s, though course shifts occasionally result in length changes. Depending on how it is measured, the Rio Grande is either the fourth- or fifth-longest title: Rio Grande text: The Rio Grande rises in high mountains and flows for much of its length at high elevation; Albuquerque is , and El Paso above sea level. In New Mexico, the river flows through the Rio Grande rift from one sediment-filled basin to another, cutting canyons between the basins and supporting a fragile "bosque" ecosystem on its flood plain. From El Paso eastward, the river flows through desert. Although irrigated agriculture exists throughout most of its stretch, it is particularly extensive in the subtropical Lower Rio Grande Valley. The river ends in a small, sandy delta at the Gulf of Mexico. title: Republic of the Rio Grande text: Republic of the Rio Grande The Republic of the Rio Grande () was an independent nation that insurgents against the Central Mexican Republic sought to establish in northern Mexico. The Republic of the Rio Grande was just one of a series of independence movements in Mexico under the unitary government dominated by Santa Anna's, including the Republic of Texas, the Republic of Zacatecas, and the Republic of Yucatán. The rebellion lasted from January 17 to November 6, 1840. After a decade of strife, Mexico won its independence from the Kingdom of Spain in 1821. After a failed attempt at a title: Republic of the Rio Grande text: the Republic of the Rio Grande has a red hoist with three white stars run evenly along the hoist. The three stars represent the three states that seceded: Coahuila, Nuevo León, and Tamaulipas. The fly is split into a white upper fly and a black lower fly. Remnants of the republic's effect can be seen in: Republic of the Rio Grande The Republic of the Rio Grande () was an independent nation that insurgents against the Central Mexican Republic sought to establish in northern Mexico. The Republic of the Rio Grande was just one of a series of independence movements