Final answer:
Manifest Destiny led to westward expansion of the United States. American settlers came into conflict with the Mexican government due to their migration into Mexican-controlled territories. The war with Mexico ended with the signing of the Treaty of Guadalupe Hidalgo.
Step-by-step explanation:
Effect of Manifest Destiny:
The effect of Manifest Destiny was the expansion of the United States territory to the west. It resulted in the acquisition of new territories such as Oregon, California, New Mexico, and Texas.
American settlers in conflict with Mexican government:
The American settlers came into conflict with the Mexican government due to their migration into Mexican-controlled territories, particularly in Texas. The settlers wanted to establish their own government and eventually sought annexation to the United States.
Reluctance to annex Texas:
The United States was initially reluctant to annex Texas due to concerns over its potential impact on the balance of free and slave states. There was also fear of provoking a war with Mexico if Texas was annexed.
End of the war with Mexico:
The war with Mexico ended with the signing of the Treaty of Guadalupe Hidalgo in 1848. The United States gained the Mexican Cession, which included present-day states such as California, Nevada, Utah, Arizona, New Mexico, and parts of Colorado and Wyoming.
Learn more about Manifest Destiny and the Mexican-American War