What is the purpose of the Louisiana Purchase?

Louisiana Purchase. 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

The Louisiana Purchase is important because it gave the U. S. control of the Mississippi River and the port city of New Orleans, both of which were used by farmers to ship their crops and get paid.