Making an underground city for a near atomic war was the dreams of the Russians, and you may know, there is a kind of underground Vault has been made by the Russia government when the country was Komonist. I think It's under the city of Moscow. and it' a very big city with streets and...
all that I want to say is that the game is made on this kind of theory in 1950's: Komonists one day will attach U.S.A. but you know it was just a theory. so you see in this game that the China (that is a komonist Country) is attacked U.S.A in 2077. (Poor China!!)
and I think that it is All the U.S!
I think there must be some kind of cold war between U.S and the Eastern country now. such as china and Arabic countries and also Iran (which is my country!).
I think there is an underground city in Montreal too.
Hehehe interesting opinions, I would not try to dig too-deep for meaning in the selection of China as the country that the US fought, and there is nothing to say that in 100 years when China is the dominant world power, it couldn't happen. There isn't any "theory" on show here, Russia did make plans to invade the US and if I recall the book I read correctly, it was the fact that something like 150 million American's have firearms and the size of our country/distance for the USSR that ultimately defeated such plans - but what do I know?
If there was an underground city in Moscow, I find it hard to believe that it is still in use. More probably it looks like one of the rusted vaults from Fallout3! Maybe even a nice violin down there or something.
As for a Cold War with Europe, now your dreaming (even in Fallout3 times), but our problems with Iran are real and hopefully solvable with the right diplomacy and enough time.
As for a vault underneath Montreal, yeah there is one - its full of Beer Kegs for when the end of the world comes - Canadians have their priorities in-line after all, if a nuclear winter really comes, then Hockey will finally become a dominant world sport and beer will be on-hand to celebrate when everyone else runs dry.
M