Outcome of the Mexican-American War

During the mid-19th century, tensions between the United States and Mexico escalated, leading to an armed conflict known as the Mexican-American War (1846-1848). This war was rooted in issues such as territorial disputes and the annexation of Texas by the United States. As a result, significant territories were ceded to the United States, transforming its landscape and influencing future relations with neighboring countries.

Which of the following statements best describes a primary outcome of the Mexican-American War?