By late 1847, the Americans had captured Mexico City, which made the Mexicans agree to a peace treaty which ceded all of the lands the U.S. had wanted. Yet not only did the Americans win the war, they also won every major engagement.

After the U.S. army occupied Mexico City, the Treaty of Guadalupe Hidalgo was negotiated and brought the war to an end. The treaty gave the United States control of Texas, established the border at the Rio Grande, and ceded other Mexican lands to the United States in the southwest.

Treaty of Guadalupe Hidalgo: February 2, 1848 The treaty added an additional 525,000 square miles to United States territory, including the land that makes up all or parts of present-day Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming.

The United States was justified in going to war because Mexico had shed American blood on American soil, Texas (a land that many Mexicans still considered theirs) was an independent republic and had the right to govern itself, and Texas was trying to become part of the United States, which means that the United States …

The US was unjustified in going to war because of 3 reasons: Polk provoked it, Robbery of Texas, and the growth of Slavery of Texas. One reason the US was unjustified is that Polk provoked Mexico. He was a strong believer of Manifest Destiny.

The Mexican-American war (1846-1848) changed the slavery debate. It almost doubled the size of the United States and began a debate, between Northerners and Southerners, over what to do with the newly acquired land.

On May 12, 1846, the United States Senate voted 40 to 2 to go to war with Mexico. President James K. Polk had accused Mexican troops of having attacked Americans on U.S. soil, north of the Rio Grande. But Mexico claimed this land as its own territory and accused the American military of having invaded.

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 Mexican-American War, waged between the United States and Mexico from 1846 to 1848, helped to fulfill America’s “manifest destiny” to expand its territory across the entire North American continent.

Which of the following was the greatest consequence of winning the Mexican-American War for the United States? It caused conflict in the United States over whether slavery would be allowed in new territory. It gave the United States additional farmland and increased trading of food crops with other countries.

The treaty effectively halved the size of Mexico and doubled the territory of the United States. This territorial exchange had long-term effects on both nations. 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 acquisition reignited the debate over the slavery issue in the western territories and also contributed to the division between the North and South which also result in the establishment of new single parties.

Constitutional scruples and fear of war with Mexico were the reasons given for the rejection, but antislavery sentiment in the United States undoubtedly influenced Van Buren and continued to be the chief obstacle to annexation. Texas withdrew the annexation offer in 1838; President Mirabeau B.

The main reason for this was slavery. The US did not want to annex Texas because doing so would have upset the balance between slave states and free states that had been accomplished with the Missouri Compromise of 1820. When Texas became independent, it wanted to join up with the United States.

The Mexican government worked with empresarios, who operated as land agents in Texas. One of the most famous empresarios, Stephen F. Austin, brought 300 families to settle Texas – a group sometimes referred to as the “Old Three Hundred.” The tracts offered were vast – 4,605 acres for each family.