Indian wars, France lost all of its possessions in North
America removing hopes of a colonial empire.In 1801, Spain signed a secret treaty with France to return Louisiana Territory to France.
Since the late 1780s, Americans had been moving westward into the Ohio River and Tennessee River valleys, and they were highly dependent on free access to the Mississippi River and the strategic port of New Orleans.
U.S. officials feared that France, under the leadership of Napoleon Bonaparte, would soon seek to dominate the Mississippi River and access to the Gulf of Mexico.