Consequences of the Mexican-American War

During the mid-19th century, the United States engaged in a conflict with Mexico that would come to be known as the Mexican-American War (1846-1848). This war resulted in significant territorial gains for the United States and was rooted in issues such as Manifest Destiny and the annexation of Texas. In analyzing this pivotal event, consider the implications of the Treaty of Guadalupe Hidalgo and the broader context of U.S. expansion.

Which of the following outcomes was a direct result of the Mexican-American War?