Why did the Mexican-American War cause lingering resentment among Mexicans?

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Explanation:

The Mexican - America war is popularly know in Mexico as the Intervención Estadounidense en México meaning "U. S. intervention in Mexico". It started in 1846 and ended in 1848, everything started with the 1844 United States presidential election, in which Democrat James K. Polk was elected as president as the eleventh United States president. James k Polk has made the United States of America of America to annexe Texas which was part of Mexico territory. This lead to a full scale war between the two countries

The Mexican-American War cause lingering resentment among Mexicans because they lost large amount of Land to the United States of America and many lives were more lost on there side

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Explanation:

Because Mexico lost about a half of its original national territory, which represented a great humilliation for the Mexican army and the Mexican government.