CURRENT AFFAIRS

Detailed explanation-1: -US President Biden makes first visit to US-Mexico border since taking office.

Detailed explanation-2: -The border was established in the 1819 Adams–Onís Treaty between the U.S. and Spain, which specified a border in the vicinity of the western edge of the Mississippi River watershed. Mexico gained its independence from Spain, and the border was reaffirmed in the 1828 Treaty of Limits.

Detailed explanation-3: -The Mexico–United States barrier (Spanish: barrera Estados Unidos–México, also known as the US–Mexico border wall or simply the “border wall") is a series of vertical barriers along the Mexico–United States border intended to reduce illegal immigration to the United States from Mexico.