Which of the following was the main cause of the Mexican-America war? A. the Americans belief in Manifest Destiny

B. Mexicans living illegally on American land

C. the Louisiana purchase of 1803

D. President Polk's attempts to buy Mexico's Northern land

The Mexican-American War was a conflict between the United States and Mexico, fought from April 1846 to February 1848. ... 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).

The answer is A

Explanation:

Pres Polk believed in manifest destiny, basically "America's God given right" to make sure our land stretched coast to coast.

ghana achieved independence peacefully, while algeria gained independence through an armed struggle.