Al Qaeda, oil, and Pakistan, a trifecta of troublesome issues, make the US withdrawal from Afghanistan far more complicated than it was in Iraq.
That question may occur to many Americans upon learning that NATO countries are poised this month to lay out their post-2014 commitment to Afghanistan. After all, more than 6 in 10 disapprove of a US-Afghanistan pact to foot much of the bill for Afghan forces and to keep American troops there after 2014, according to a recent Christian Science Monitor/TIPP poll.
The US and NATO have been on the ground in Afghanistan for nearly 11 years, trying to build up Afghan security forces, among other things. But those forces still are not ready to shoulder security duties without outside help.
Thus, the primary goal that the US set for itself once it routed the Taliban from power remains to ensure, as President Obama has said, "that Afghanistan does not again become a safe haven for terrorists."
With the Al Qaeda leadership weakened but alive across the border in Pakistan, the US wants to maintain a robust counterterrorist capability in Afghanistan.
Another factor is oil – or rather, in Afghanistan's case, a lack of it. In Iraq, the US could exit abruptly because the central government had the revenues, thanks to plentiful oil deposits, to provide basic services and to field adequate Army and police forces to maintain security. But Afghanistan has no such revenues, although it is working to open up development of mineral deposits that may ultimately provide them.