Outcomes of the Mexican-American War

Medium Period 5: 1844–1877 Mexican-american War

In the context of the Mexican-American War (1846-1848), a key issue that escalated tensions between the United States and Mexico was the annexation of Texas. Many in the U.S. believed that the annexation was a fulfillment of America's Manifest Destiny, while Mexico viewed it as a violation of their sovereignty. As U.S. troops moved into contested territories, President James K. Polk claimed that Mexican forces had attacked American soldiers on U.S. soil, which prompted Congress to declare war. Which of the following statements most accurately reflects a significant outcome of this conflict?

The war resulted in a treaty that established U.S. control over present-day California, Arizona, New Mexico, and Texas.

The Mexican-American War ended in a ceasefire, with both nations agreeing to split control of the disputed territories.

The war led to the immediate abolition of slavery in the newly acquired territories.

The conflict significantly increased tensions between the United States and Britain over the Oregon Territory.

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