[PAR] [TLE] Mexico–United States border [SEP] The Mexico–United States border is an international border separating Mexico and the United States, extending from the Pacific Ocean to the west and Gulf of Mexico to the east.  The border traverses a variety of terrains, ranging from major urban areas to uninhabitable deserts.  s of 2010 , approximately 350 million legal crossings occur annually, and is the most frequently crossed border in the world. [PAR] [TLE] Chamizal dispute [SEP] 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.
[PAR] [TLE] Mexico – United States border [ SEP ] The Mexico – United States border is an international border separating Mexico and the United States , extending from the Pacific Ocean to the west and Gulf of Mexico to the east . The border traverses a variety of terrains , ranging from major urban areas to uninhabitable deserts . s of 2010 , approximately 350 million legal crossings occur annually , and is the most frequently crossed border in the world . [PAR] [TLE] Chamizal dispute [ SEP ] 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 .
How many people cross the border over which the Chamizal dispute  took place?
How many people cross the border over which the Chamizal dispute took place ?
approximately 350 million legal crossings
approximately 350 million legal crossings