Final answer:
The Brownsville, Texas, and Matamoros, Mexico are connected by two bridges crossing the Rio Grande River, which marks the border between USA and Mexico since the Mexican-American War.
Step-by-step explanation:
The cities of Brownsville, Texas, and Matamoros, Mexico, located in North America, are connected by two bridges across the Rio Grande River. The Rio Grande is a significant river of North America and it has historically been a major boundary between the United States and Mexico, according to facts traceable to the Mexican-American War from 1846 to 1848.
The United States, after annexing Texas in 1845, claimed the Rio Grande as the border. However, Mexico initially claimed a different boundary at the Nueces River. This border dispute essentially led to the Mexican-American War, and following the war, the border was officially agreed upon by both countries to be the Rio Grande.
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