I picked this book up at the airport on my way to the race last week, a fast read. Takes place in 2016, WWIII has taken place after Iran and the Saudis nuke the crap out of each other and oil goes to $800/barrel. Canada is neutral in the global war so Russia invades Alberta to capture the resources.
http://www.amazon.com/Tom-Clancys-EndWar-David-Michaels/dp/0425222144
http://www.amazon.com/Tom-Clancys-EndWar-David-Michaels/dp/0425222144