My guess would be that within a decade of total troop recall from Iraq, the US will wage a war against Iran. What the news doesn't tell you is that the US is building military outposts, staging areas, and training facilites in Iraq and Kuwait. Number one, is Camp Buehring. That's where I was stationed. It will become the US main desert tranining facility. Now, why would we need that? Also, Bush and the Neocons need to have constant war against something. This political thought goes back from Nazis, to Communism, drug trafficing, and now they've got muslim extremists (or the blanket terrorist group Al Qaeda).
Or, they'll concentrate on the one that got away, North Korea. But, ever since Vietnam, the US command has feared conflict in Asia. Mainly because attacking N. Korea would wake the sleeping giant that is the People's Republic of China. We're just not prepared to fight China on their turf. It would have to be a war of attrition. Or, a nuclear war. But, we'd definitely have to strike first.