What did the Manifest Destiny have to do with the Mexican-American War?

"The concept of Manifest Destiny held that the United States had the providential right to expand to the Pacific Ocean. In 1845 the U.S. annexed the Republic of Texas, which had won de facto independence from Mexico in the Texas Revolution (1835–36)."

Explanation:

manifest destiny had to do with the process of expanding westward. the mexican american was fought because settlers were encroaching onto mexican territory.  

Explanation:

a.that is my answer.

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