The combat strength of a city seems to slowly increase overtime with the population, but that's just a guess. I'm curious what is the exact formula for determining the combat strength of a city?
Obviously buildings like walls or a castle have the most direct impact. And I know that social policies, like Universal Suffrage, can also have a strong impact on the combat strength and hit points of a city.
But that still leaves a lot of unknowns about how the combat strength and hit points of a city are calculated. Some cities seem a little tougher than others in terms of their combat stats.
Does anyone know the base formula's for a city's combat strength and hitpoints?
Or have an idea of the major components of the formula?
(Side question: is Terrain a major component?)