The headquarters of the United States Department of Defence, Pentagon has planned to establish a new wall at which of the following border in order to prevent illegal migration and drug trafficking?

The Pentagon,the headquarters of the United States Department of Defence has notified that it has authorized to shift US $1 billion from a military personnel account to establish a new wall of 57 mile and 18 foot high fence at the southern U.S. Mexico border.This wall would prevent illegal migration and drug trafficking from Mexico.Department of Defense has authorised the Army Corp of Engineers to begin planning and construction for the project.The department will direct the funds towards fencing along the Yuma and El Paso sections of the border.