Answer:
Explanation:
The Louisiana Purchase (1803) was a land deal between the United States and France, in which the U.S. acquired approximately 827,000 square miles of land west of the Mississippi River for $15 million.
There was great tension between pro-slavery and anti-slavery representatives over how new territories won would handle the issue of slavery.
The Mexican-American War and the 1848 Treaty of Guadalupe Hidalgo, forced onto the remnant Mexican government, drew some criticism in the U.S. for their casualties, monetary cost, and heavy-handedness. Furthermore, the question of how to treat the new acquisitions also intensified the debate over slavery and in many ways inflamed it, as potential westward expansion of the institution took an increasingly central and heated theme in national debates preceding the American Civil War.
It connected four states in the west
During wwii, for the most part, everyone was united. we were all fighting for one cause. after wwii, america has sealed its fate as a global presence. we took on a leadership role of sorts in the playing field. then, the cold war happened (to sum it up, america and russia were not very happy with each other). when the cold war came about, things like the space race showed up too (first to go to space, first to land on the moon, etc). there were so many goals that each nation was working towards to make itself better, to make itself known, and to make sure they were a force to reckon with. in order to do that, you had to have people that were willing to do that. more people wanted their country to become a superpower, or launch people into space, or have the best weapons. people wanted to be proud of their country. hopefully that helps you :D