Adding more troops now only increases the number of soldiers in harm's way and delays the end of the conflict. This is like Vietnam: a big build-up of soldiers that's supposed to put an end to the insurgency. What's next, Iraqization and, years from now, frantic evacuations of the Green Zone by helicopter as militias storm our embassy? The longer we stay, the more insurgents we breed and the less credible the Iraqi government looks. We should start leaving now, not start sending more troops.