Drill (Civ4)

Drill is a line of promotions in Civilization IV.
In vanilla Civilization IV, Drill was not available to gunpowder units.
== Drill I ==
Drill I gives a unit 1 additional first strike.
== Drill II ==
Drill II gives a unit 1 additional first strike and reduces the amount of collateral damage it takes by 20%.
== Drill III ==
Drill III gives a unit 2 additional first strikes and reduces the amount of collateral damage it takes by 20%.
== Drill IV ==
Drill IV gives a unit 2 additional first strikes, reduces the amount of collateral damage it takes by 20%, and gives it a 10% bonus in combat with mounted units.
== See also ==
* Drill in other games