USA HISTORY

Detailed explanation-1: -It stemmed from the annexation of the Republic of Texas by the U.S. in 1845 and from a dispute over whether Texas ended at the Nueces River (the Mexican claim) or the Rio Grande (the U.S. claim).

Detailed explanation-2: -The Mexican-American War was fought between the United States and Mexico from 1846 to 1848. It was primarily over the territory of Texas. Texas had been a state of the country of Mexico since 1821 when Mexico gained its independence from Spain. The Texans, however, began to disagree with the government of Mexico.

Detailed explanation-3: -The immediate cause of the Mexican-American War was a disputed boundary between the United States and Texas on the Nueces Strip. Mexico did not recognize Texas as legitimate American territory and Texas admission to the United States antagonized Mexican officials and citizens.

Detailed explanation-4: -The major engagements of the Mexican-American War The Mexican-American War (1846-1848) was fought from California to Mexico City and many points in between. There were several main engagements: the American army won all of them.

Detailed explanation-5: -On April 25, 1846, Mexican cavalry attacked a group of U.S. soldiers in the disputed zone under the command of General Zachary Taylor, killing about a dozen. They then laid siege to Fort Texas along the Rio Grande.