Actually, I for one think that sounds like a good idea. That makes perfect
sense in that the more pacifistic cities will be fortified in and hard to
attack, but wont' have as much mobile power in the form of large armies.
The cities with lots of fighters will have more offensive firepower, as
befits them, but they don't really have an advantage, per se, since their
troops are matched by a pacifistic city's fortifications.
Written by my hand on the 10th of Hindyear, in the year 977.