What happens to the terrorists when you occupy a big country like Iraq with too few troops?

When you have a ‘surge’ the terrorist go to the provinces.

In Diyala, thirty miles from Baghdad, the American commander put it this way, “You’ve got more than 20,000 more American troops pouring into Baghdad – so the insurgents are going to go somewhere.” His casualties have doubled since the surge. (N&O; 2-17-07).