Answer:
The Mexican army attacked them. The main cause of the war was the westward expansion of the United States. All through the 19th century Americans believed it was their right to expand westward. At the time they believed they could conquer the people already living on the land and take it for the United States.
Explanation:
The main objective of the Anti-federalists was avoid the establishment of the president because they thought that a centralized power could degenerate into a monarchy. Although the Anti-federalists could not avoid the approval of a new constitution, this effort was not completely in vain. Anti-federalism thus became an influential group among the founding fathers of the United States. With the approval of the constitution and the bill of rights, the anti-federalists were exhausted. They were succeeded by members of the anti-administration party, which opposed the fiscal and foreign policy of George Washington.
Answer:
The Transcontinental Railroad fundamentally changed the American West. As the United States pushed across North America, railroads connected and populated the growing nation. Railroads also sparked social, economic, environmental, and political change.