The elite/Illuminati are in power (if you believe agenda21nwo) so why create any conflict at all, why have wars, why create the mess in the first place.
Why dont they just run the whole planet with one government and have done with it?
Because the civil unreat would threaten their power.
History has shown the righteous oppresed underclass can and will successfully overthrow an authoritarian regime, if you beat them down enough/make it obvious enough.
Its mental politics, a form of subversive control that makes it easy for a sense of global control by making the people think they have power and/or are capable of making decisions.
I dont necessarily believe the illuminati bullshit, but i absolutely believe there are people above than the leaders of nations that 'direct' a general worldwide agenda, that is in the best interest of the global power players who drive the worldwide economy, which necesitates a certain level of manipulating events and people on a global scale in order to ensure that all their interets are put first.