Knowledge of the terrain can be the difference between victory and defeat. By spending 10 minutes observing the area in a 2-mile radius you can spend 2 [[03-Mechanics/9-Combat Maneuvers/Combat Maneuvers#Exertion Pool\|exertion points]] to pick out where there are choke points, large swathes of cover, watercourses, vegetations that can offer [concealment](https://a5e.tools/rules/environment "Click to view a local node.") , ridgelines, and so on. You gain an expertise die on [[Engineering]] and [[Survival]] checks made within the area, and on checks made to prepare an ambush or realize you are being ambushed. #lessonsOfWar #engineeringBonus #survivalBonus #surpriseBonus #avoidSurprise