Here we go againWhere would they get the settlers from? The population of Louisiana was very small in 1803, how would they feed 20-50,000 troops. That's when the USA would ally with the British, and arm up. The Americans could never accept another major power trying to settle the middle of North America, and have control of the mouth of the Mississippi River. It would block the Westward Movement, which was the U.S. primary national strategic objective in the 19th Century.