Why dont we go to war with russsi and china?

They have weapons of mass destruction, It would create a better economy (War brings jobs) and they have tyrants for leaders well so do we but why not invade moscow, and beijing than we really will be the superpower.

Because we don't believe in national suicide, plain and simple....all three countries subscribe to the M.A.D. doctrine...

But with so many itchy fingers on the bomb, world annihilation is not that good of a trade-off.
You go ahead and start a war with Russia or China. Dumbass.
Because they are big countries; China is the bigger of the two.
Russia has nothing we want and China has more bodies than we have bullets. Not to mention the big boomers they both have.
Russia is our ally and China's army is probably bigger than our whole country.
why goto war with russia they are not an enemy, US has WMD, so should we goto war with ourselves, everyone in the country of china carry guns, the whole country is a weapon