USA HISTORY

Detailed explanation-1: -Rio Grande, Spanish Río Grande del Norte, or (in Mexico) Río Bravo, or Río Bravo del Norte, fifth longest river of North America, and the 20th longest in the world, forming the border between the U.S. state of Texas and Mexico.

Detailed explanation-2: -"The Rio Grande is a natural border, has been since 1848, and the ties between cities and towns on either side are strong, ” CNN’s Gregory Krieg reported.

Detailed explanation-3: -The Rio Grande is the fifth longest river in the United States and among the top twenty in the world. It extends from the San Juan Mountains of Colorado to the Gulf of Mexico (1, 901 miles) and forms a 1, 255 mile segment of the border between the United States and Mexico.

Detailed explanation-4: -Mexico attacked in April 1846, and when the Mexican-American War ended in February 1848, the border we see today began to take shape. On the east, the line would follow the Rio Grande. From there it would cut west in a straight line across the desert, until it reached the Gila River.