i can almost guarantee you that they made up all governments that are not in america because i played fallout 1 fallout 3 and New Vegas and never heard anything about anywhere outside of america
The Mod takes place several years after Fallout 2. It takes things from Fallout Tactics and the original Fallout 3 (Van Buren), but disregards the newer games. Its pretty much in a separate timeline. Most countries, like the new Canada, were create for the mod.
It's weird that there's a new canadien goverment ,sence canada was annexed before the great war and almost everyone in the fallout universe dosen't know anything about the past. Weird indid.