The Chamizal dispute was caused by a shift in which one of the principal rivers in the southwest United States and northern Mexico?
Chamizal dispute The Chamizal dispute was a border conflict over about 600 acres on the Mexico–United States border between El Paso, Texas, and Ciudad Juárez, Chihuahua. It was caused by a shift in the Rio Grande, as a survey presented in 1852 marked differences between the bed of the Rio Grande (in Spanish: "Río Bravo del Norte" ) and the present channel of the river. The Chamizal was once the only link between El Paso and Ciudad Juárez and tensions over the territory during the historic Taft–Diaz summit almost resulted in the attempted assassination of both presidents on October 16, 1909.
Politics of the Arizona Borderlands The Arizona borderlands are the geographic and cultural region north of the Arizona portion of the US-Mexico border. The area is unique in that it features both an international border and the Tohono O'oham sovereign nation along much of that border. Frequent and persistent topics of interest in the area include the presence of illegal immigration, the confluence of local, state, and national politics surrounding the border, conservation and sustainable living, and the presence of drug traffickers and paramilitary forces in the vicinity.