 cauldrons of boiling oil) automatically activate, killing an enemy troop that reaches such a wall segment, but only if they have been placed into the wall in the design phase.Also, if an enemy soldier reaches a moat section, they have to ford it first in order to pass through.Enemies come in many different types, ranging from simple enemy troops to siege weaponry, or even fantasy creatures (ogres, if the fantasy option was selected when the game was started).