Here is a breakdown of what is really happening in the world in regards to WW3, I follow this stuff just as much as I follow Ron Paul.
1) Russia and China will back Iran if Iran is attack, both stated publicly
2) U.S.A will do everything in there power to get Iran to attack first
3) Iran has stated that if a oil embargo is put into place ( EU just signed it today to take effect in JULY 2012 ) then Iran will close the straight of hormus. Iran also said it might just cut off the oil before that, effecting Spain, Italy and Greece.
4) U.S.A and the U.K said they will attack Iran if the straight is closed
5) Iran has 500k reg troops and about 150k RNG ( Special ), the Shahab 3 is a medium range, liquid-propellant, road-mobile ballistic missile, which Iran has 300 to 500 of. It can and will be used against American troops stationed in the area and it will destroy Isreal.
6) Russia and China are frantically building up there military power knowing what is coming.
7) Ron Paul predicted this and Ron Paul is the only one that can stop it.