Answer:
I think the Louisiana purchase influenced the early development of the United States because It has made over five states over the years. But, I also think the Louisiana Purchase led to the war of 1812 since the British limitations on the United States trade and America increasing their sizes to the U.S. This caused the U.S to become incredibly wealthy and left the rest needing money to help pay for things like Soldiers and war supplies. The effects of the event caused up some issues in the constitution, and the leaders deciding rather or not the Louisiana Purchase should continue. As this was all going on, The Monroe Doctrine became a U.s Policy that stated how European powers do not belong in America or the western hemisphere. But, this policy failed because the United States didn't have, nor was a prominent power at the time, and affected their relationship with Latin America.
Explanation:
100% on it