Arianna Huffington succinctly explained why.  

Withdrawing our troops from Iraq does not mean abandoning Iraq.

Withdrawing our troops from Iraq does mean eliminating the insurgency’s best recruitment tool.

To win in Iraq, we need to leave Iraq. To win, we need to stop being the issue. To win, we need to give our money, our brains, our support in every way — but no longer the lives of our soldiers.

 It’s time for our alleged leaders to follow through with this plan.