Because it’s never too late to have lots of surgetastic goodness. From Rising Hegemon:
Sometime around February 2004, a top military official in Iraq estimated that there were about 15,000 total insurgents. About a year later, U.S. military leaders in Iraq announced that 15,000 insurgents had been killed or captured in the previous year.
In private, a skeptical military adviser pointed out to commanders that the numbers didn’t make sense. “If all the insurgents were killed,” he asked, “why are they fighting harder than ever?”
Well, obviously they are either lying or they are fighting zombie-insurgents because the Islamic God is bigger than General Boykin’s God.
I’m going with the zombie insurgent hypothesis.