The Unsustainable Empire
It needs to foment wars (or at least the threat of wars) in order to prop up it's massive military industrial complex. If peace were to break out, the military industrial complex would drastically shrink and this of itself would collapse the US economy. The major flaw in this "economic model" is that the cost of the wars instigated to justify the military industrial complex is pushing up debts to the point where the US taxpayer cannot pay the price any longer.
The US needs to perpetuate greed in order to justify the pillaging of the global resources, the consumption of which has become an addiction. i.e. addicted to insanely wasteful and totally unsustainable lifestyles which its citizens have been brainwashed into "aspiring to" by the marketing maniacs employed by the conjurers of consumerism.
The US is also trying to ride on a doomed philosophy: The philosophy of letting its robber barons browse and pillage the rest of the world to bring home the goodies needed to prop up the totally unsustainable American Dream. This is now seen for what it always was - a fatally flawed philosophy.
The robber barons have now created globalised corporate pirate outfits which have been exposed for what they really are: Psychopathic entities.
Thus the US Empire's ambition to dominate the world has been achieved - but it has also spelled its doom.
If that is the problem, what is the solution?