Barracks

From the lowliest foot soldier to the most elite cavalry troops, your Barracks symbolizes the defensive and offensive prowess that your village will or will not be known for. Increase the level of your barracks to uncover stronger and deadlier troop types, siege equipment, and spies. Increasing the barracks level will also uncover the all-important Lab where the efficiency of your kingdom will grow by leaps and bounds.

Function
The Barracks can be constructed only after building up the Warehouse to level 3 and Mill to level 3 and it controls quite a few different features.

Its level determines three things:
 * Soldier Cap: the maximum number of troops a village can create (support troops sent from other villagers are not counted).
 * Troop Training Time: a reduction in time taken to train troops in a percentage value of the base training time.
 * Siege Unit Cap: the maimum number of siege units a village can create (comes into effect at level 23).

Apart from that, you can also do the following in the Barracks:
 * Train Troops
 * Research more Troops
 * Send Attack and Support Troops
 * Send Spy Missions (at the Spy Guild)
 * Simulate Battles