The spark of the mexican-american war was when __________.A. General Taylor attacked Mexico CityB. General Scott's troops fired the first shotsC. General Kearny attacked Santa Fe D. General Taylor's troops crossed into "Mexican territory"
The spark of the Mexican American war was when Mexican cavalry attacked a group of U.S. soldiers in the disputed zone under the command of General Zachary Taylor, killing about a dozen.
Answer: D. General Taylor's troops crossed into "Mexican territory"
Explanation: The Mexican-American War sparked when General Zachary Taylor's troops arrived at the Rio Grande River, an action that Mexico considered an invasion of their territory.