USA HISTORY

Detailed explanation-1: -Gadsden’s Purchase provided the land necessary for a southern transcontinental railroad and attempted to resolve conflicts that lingered after the Mexican-American War.

Detailed explanation-2: -In short, the Mexican-American War was caused because of the United States’ repeated encroachment on Mexican territory, such as its’ annexation of Texas, which Mexico refused to recognize as being independent. Therefore, Mexico also refused to recognize the claimed border between the two nations.

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 war and treaty extended the United States to the Pacific Ocean, and provided a bounty of ports, minerals, and natural resources for a growing country. The abundance of lands also produced debates about extending slavery into the West, a dispute that would help spark a nation-defining civil war.

Detailed explanation-5: -Why did Mexico sell the Gadsden Purchase? Mexico needed money for military operations. Also the Mesilla Valley had been in contention since a Mexican land company had sold plots on Mexico’s land to Americans.