There is a brief explanation of advanced features.

Military data
-------------
	There are some features, most of them hidden by default, related to military
	on the game.
	
	RETREAT WHEN INJURED
	--------------------
		Retreat when injured, or simply retreat. When a soldier's hit points drops
		below this percentage value, soldier then will try to go to safety of 
		home.
		
		[allow_retreat_change]
			If this section exists on config file of tribe, then player is allowed
		to change value of retreat in-game. This may be present on files like
		castle_village and headquarters_medium to activate this feature.
	

		[retreat_change]
			This section encapsulates next two variables. This section should exist
		on main tribe conf file.
		
		retreat_change=value
			Sets new default value for retreating, overriding default for tribe.
		This variable should exist on main tribes conf file.
		
		retreat_interval=min-max
			Sets valid interval of retreating for tribe that the player is allowed to
		set. This interval only is shown in game when player is allowed to modify
		retreat. 


