This should also be looked at.
http://forums.civfanatics.com/showthread.php?t=169738
«Description:
Whenever a living human land-based unit is defeated by another land-based unit,
there is a chance that the unit about to be defeated switches allegiance and
joins the victors. They keep all promotions, exp, and levels, lose 1/2 hp, and
can't be moved until next turn.»
I think some units should not be able to switch allegiance like some religious unit or national unit, but I don't imagine an entire nation with all soldiers loyal to death (especially when playing with rev on)
http://forums.civfanatics.com/showthread.php?t=169738
«Description:
Whenever a living human land-based unit is defeated by another land-based unit,
there is a chance that the unit about to be defeated switches allegiance and
joins the victors. They keep all promotions, exp, and levels, lose 1/2 hp, and
can't be moved until next turn.»
I think some units should not be able to switch allegiance like some religious unit or national unit, but I don't imagine an entire nation with all soldiers loyal to death (especially when playing with rev on)