For the most part, there has not been much! The incidents you listed are the major encounters. Most other scuffles occurred in either Alenroux over the years, or some altercations between independent actors in Kowloon or Old Springstar. Essentially, think about a scuffle between a Zenite loyalist and a member of the legionnaire at a bar that blows up a little bit, but there were fewer 'official' actions, beyond what happened explicitly. After all, there were no Oracles to fight over! They're still at war, and still sniping, but consider it more of a cold-war type of circumstance. Especially since both cities spent the century buffing up their defenses.