Military units are rated according to combat experience: conscripts, regulars, veterans, and elite units. The more experienced a unit, the more damage it can absorb before being destroyed in combat. The number of blocks in the unit's health bar shows this distinction. Unit Type Blocks Conscripts 2 Regulars 3 Veterans 4 Elite units 5 Normally, cities produce regulars. But if a city has a barracks, it produces veterans. Occasionally your men will discover barbarian tribes that contribute conscripts to your army, and sometimes you may institute the draft, which also produces conscripts. Elite units cannot be built: they gain this status only through actual combat experience. An elite unit can produce a great leader, if it continues to be successful. Battlefield Promotions When one of your units is victorious in battle, there is a chance it will gain combat experience and be promoted to the next level.