How the Surge Is Working

According to this article from the UK Independent, partially via increasing "insurgent" casualty figures through some unsavory means:

US soldiers are luring Iraqis to their deaths by scattering military equipment on the ground as "bait", and then shooting those who pick them up, it has been alleged at a court martial. The highly controversial tactic, which has hitherto been kept secret, is believed to have been responsible for the deaths of a number of Iraqis who were subsequently classified as enemy combatants and used in statistics to show the "success" of the "surge" in US forces.

……In a sworn statement, Captain Matthew Didier, the officer in charge of a sniper platoon, said: "Basically we would put an item out there and watch it. If someone found the item, picked it up and attempted to leave with the item, we would engage the individual as I saw this as a sign they would use the item against the US forces."

Capt Didier, of the 1st Battalion 501st Infantry Regiment, said members of the US military's Asymmetric Warfare Group visited his unit in January and later supplied ammunition boxes filled with "drop items" to be used " to disrupt the AIF [Anti-Iraq Forces] attempts at harming coalition forces and give us the upper hand in a fight."