you are really REALLY REALLY in need of a dose of something called THE REAL WORLD.
IRAN IS NOT BUILDING A NUCLEAR ARSENAL. they are years away from being able to create a nuclear power facility, even farther away from making nuclear weapons.
PAKISTAN ALREADY HAS NUCLEAR WEAPONS. taliban government of pakistan??? what the hell are you talking about?? i'm just in shock right now...
china would not try to defeat the US with military conflict. why all the bloodshed when all they have to do is freeze exports? that would be enough to cause a catastrophic collapse of the U.S. the U.S. was smart though, they went to the chinese for money, so actually if china wants to screw the U.S. the U.S. can default on the loans and cause problems there... hmmm...