Current Fort HP

Produced by fort workers. 1 worker produces 1 HP per day. The cost of one HP is 3 food and 2 wood
​HP has a limit depending on the level of the fort
An enemy unit of any type of troops takes away 2 HP of the fort per day, but this only affects those units that enter the siege
Fort HP can drop to 0, and then the enemy will be able to Robbery resources from your Treasury
Current Fort HP also affects the maximum number of military units you can hire in your army. However, if the fort is destroyed, the size of the army may be higher than this limit