Say you have a defensive pact or brought in a war ally to fight against a common foe. Now the common foe has taken your city then your ally liberates that city from the common foe.
Now it seems that the ally should not raze the city or keep it for itself (or should suffer severe diplomatic penalties for doing so) but this doesn't seem to be the case. And I know that unlike in Civ 3, the game designers seem to have thought about this a little bit because when you yourself as a human player liberate a city, I believe there is a "Return the City to Orig Civ" option (in addition to raze or keep it).
I haven't myself experienced this yet in Civ 4 but I wonder if this is still the case cause I remember in Civ 4 this happened very often and was quite annoying.
Now it seems that the ally should not raze the city or keep it for itself (or should suffer severe diplomatic penalties for doing so) but this doesn't seem to be the case. And I know that unlike in Civ 3, the game designers seem to have thought about this a little bit because when you yourself as a human player liberate a city, I believe there is a "Return the City to Orig Civ" option (in addition to raze or keep it).
I haven't myself experienced this yet in Civ 4 but I wonder if this is still the case cause I remember in Civ 4 this happened very often and was quite annoying.