For some in the current administration, those from the military-industrial complex, having an enemy is key. They want the country on the brink of war, ready to spend big money to protect itself against foes that may not even exist.
But that doesn't strike me as being the neocons way. The neocons actually believe in wars, not just preparing for them. Behind the scenes they are already talking about who will be invaded in the next 4 years, and they hope to head in that direction no matter who wins. They think they can actually achive peace by crushing their foes, that they can spread benevolance through force of arms.
Jay