What were the real root cause of WW2?

Was it a way for rogue states to get even with the victors, or an imperialist war to keep Germany down. Any nation who has dared to defy Anglo-American, now (neo-con-zionists) world supremacy in the last 2 centuries has been dealt with impunity,wether it'd be Napoleon's France,Imperial and Nazi Germany,then the old Soviet Union.Now we're seeing this again with Al-quida and the on going war in Iraq, as it was one of George Bush's so-called axis of evil,as they tried to undermine Hugo Chavez's democratically elected regime back in 2002! Will China or even the European Union be next on the neo-cons' hit list?,Well see!