World War I involved 32 nations from 1914 to 1919. It redrew the world map and reshaped many borders in Europe. The collapse of the Russian Empire created Poland, the Baltics, and Finland.
PC gamers have been enjoying the Call of Duty: WW2 beta but, one player has found evidence suggesting that there will be a total of 10 Call of Duty: WW2 maps ... the World War 2 setting.