Bush

Bush said today:

"We carefully considered these proposals. And we concluded that to step back now would force a collapse of the Iraqi government, tear that country apart, and result in mass killings on an unimaginable scale.

Such a scenario would result in our troops being forced to stay in Iraq even longer, and confront an enemy that is even more lethal ..."

I don´t understand how can it take even longer to withdraw if there is no more troops left in Iraq?