<span>Prior to the Mexican American war president Polk sent John Slidell to Mexico to negotiate an agreement between that the Rio Grande River would be the southern border of Texas. ... The United States annexed the territory of California in 1848 following its victory in the Mexican-American War.</span>
Answer:
u will have benefit even u have money money to waste
It created many knew countries that had previously never existed.
Answer: the new military technology.
Explanation: