Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The North American Union (NAU) is a theoretical regional union of Canada, Mexico, and the United States possibly similar in structure to the European Union, sometimes including a common currency called the Amero or the North American Dollar. While the idea for some form of union has been discussed, proposed, or debated in academic, business and political circles for many decades, government officials from the nations say there are no plans to create such a union and no agreement to do so has been signed. The formation of a North American Union has also been the subject of various conspiracy theories.