AdvanceChanged this version
Military Drill
Allows us to invest in military training and thereby improve battle formations, weapon handling, and our army's morale.
Advance tree
The game files don’t say where this goes: it has no requires, so the game places it in the 
Discovery tree itself.
Modifiers
Army Morale+10%
Definitionin_game/common/advances/4_choices_mil.txt:114
116icon = recruitment_improvements_renaissance
117for = mil
120ai_weight = {
120add = 10
}