B/P

The Army tab is unlocked once the first Castle or Shooting range is build. In the army tab you can buy Swordsmen and Archers. Archers are unlocked by the Shooting Range (requires 1 or more elf Assimilations). Archers cost 5Qi, or 5e18, and give 1 B/P as base, but this can be upgraded through the new racial perks system.  The base cost of a swordsman is   59.05Qi, or 5.9e19 and gives 1 Battle Power Per Second (B/P) Each level of Castle increases swordsman B/P generation by 1. City Walls unlock Garrisons, which give +X B/P to each swordsman. X = (every 10th Garrison * (the level of City Walls - 1)) Note: Garrisons only provide bonus to the 10th one, the other 9 are not used for any purpose (as of 2/6/18) B/P can also be increased by buildings and effects like the Iron Mine, the Alter of fire, and several racial perks. The Forest tab is unlocked when you unlock the Army tab. In the forest tab there are monsters which you can spend your B/P on. The plains tab is unlocked after you have completed the Plains Assimilation, which requires Elf Assimilation 5. The plains is much the same as the forest, but instead of elf assimilations it has nomad assimilation, which offers different racial perks.

Edit this as you like. If I am wrong, edit it and make it right. However, make sure to check that is isn't you that is wrong. Thanks.