I read about Mexican American war. At first the 2 different countries had peace.They did theirown things and worried about their own probems. In the years preceding the U.S.-Mexican War, the United States and Mexico were two nations headed in opposite directions. The United States, fueled by new technological breakthroughs and inspired by the concept of "Manifest Destiny," confidently expanded its territories westward. The young country was regarded as a "go-ahead" nation, looking forward to a future of seemingly endless possibilities for itself and its people. Meanwhile, Mexico struggled to maintain control over the vast expanses of land it had inherited from Spain following its long war for independence.

Week 8
In 1844, President James K. Polk ran on a Democratic platform that supported manifest destiny, the idea that Americans were predestined to occupy the entire North American continent. The last act of Polk's predecessor, John Tyler, had been to annex the Republic of Texas in 1845. Polk wanted to lay claim to California, New Mexico, and land near the disputed southern border of Texas. Mexico, however, was not so eager to let go of these territories.