Hasnt there already been 2 world wars already? Dont remember to many Americans living in caves. And the Chinese army isnt going to invade America, our Military and its capabilities FAR outweigh anything the chinese possess. They are still working on missles to sink ships. We have a missle that can be launched from Colorado and hit mainland China in 8 minutes. Tested successfully 2 weeks ago. The only thing I can see maybe happening pretty soon would be the total collapse of the Euro.