watch 01:50 The Loop (Games) Do you like this video? The drill line of promotions give military units first strikes, and reduce the amount of collateral damage they take. In vanilla Civ4, drill was not available to gunpowder units. This capability was added... when? Contents[show] Drill IEdit Drill IIEdit Drill IIIEdit Drill IVEdit Retrieved from "https://civilization.fandom.com/wiki/Drill_(Civ4)?oldid=220519" Categories: Promotions (Civ4) Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.