This refers to a historic land deal signed between the U.S. and France in 1803, wherein France agreed to sell its large North American territory of Louisiana to the U.S. government. After the successful execution of the deal, the land territory under the sovereign control of the U.S. government doubled in size. The deal was struck between U.S. President Thomas Jefferson and Emperor Napoleon in France. The Louisiana Purchase is considered to be a distress sale by Napoleon who urgently needed money to fund his war efforts in Europe.