The North American Union (NAU) is a project intended to intergrate the US, Canada and Mexico into a single economic, constitutional and militarized entity - an entity comparible to the European Union (or, for that matter, the African Union, the Asian Union, the Pacific Union, etc). Many Americans aren't even aware that this project exists, never mind that it has actually been in progress for well over two years.
In Crawford, Texas in March 2005, George W Bush hosted Canadian prime minister Paul Martin and Mexican president Vicente Fox in order to establish the 'Security and Prosperity Partnership of North America' (or SPP). This agreement is widely seen as a front which will eventually - without any kind of congressional approval - lead to the dissolving of US Mexican/Canadian borders and the introduction of a new currency, the Amero. CNN's Lou Dobbs (one of the very few) reported the SPP agreement - not without considerable astonishment - whilst this whole affair slipped under the radar of the most American citizens.
Michel Chossudovsky, writing on Global Research, considers this North American alliance to be in part motivated by a mutually beneficial will to secure the Arctic for both militaristic and economic purposes. According to some estimates, the Arctic contains 25% of the worlds oil and gas reserves. In August of this year, a Russian mini-submarine planted a flag on the Arctic sea bed in an attempt to claim territory and, by extension, oil and gas reserves.