Fog-of War is the explored area that is out of your line of sight, so you cannot see if an enemy is walking through that area. To combat this problem, players can place Outposts, Guard Towers, or even spare units with a long line of sight. There is a cheat in the cheats section, that removes the fog-of-war.


This War Elephant is demonstrating Fog-of-War. The black areas are not explored, whereas the grey area has been explored, but is out of the line of sight