Taking back a city that was taken from us and protecting an allied city-state shouldn't be an option only in the Renaissance.
This mod shift those two casus belii to the Classical Age, the Reconquest War to the civic Defensive Tactics and the Protectorate War to the civic Recorded History.
This mod shift those two casus belii to the Classical Age, the Reconquest War to the civic Defensive Tactics and the Protectorate War to the civic Recorded History.