Willpower is not some mythical force that we either have or don't have. Willpower is our decision to use higher mind thinking instead of lazing around in the clutches of our primal mind.
The warrior knows that he is free to choose his desires, and he makes these decisions with courage, detachment, and - sometimes - with just a touch of madness.
As Iraqi forces gain experience and the political process advances, we will be able to decrease our troop level in Iraq without losing our capability to defeat the terrorists. These decisions about troop levels will be driven by the conditions on the ground in Iraq and the good judgment of our commanders, not by artificial timetables set by politicians in Washington.