Level 1
+6% weapon damage inflicted by all melee units
+6% weapon damage inflicted by all missile units
Level 2
+6% morale for all units
+12% weapon damage inflicted by all melee units
+12% weapon damage inflicted by all missile units
Level 3
+12% morale for all units
+18% weapon damage inflicted by all melee units
+18% weapon damage inflicted by all missile units