I wouldn’t mind seeing some sort of notification on the map that a battle took place within the last 8 or 24 hours. it can be an option how long a player wants the notification or they can turn it off. Maybe an explosion symbol over or around the star or something similar. Should be pretty simple to add in. This will let players know where a battle took place a lot easier instead of going to the events page.
An explosion around the star like this should work but with some color. Maybe red and yellow lines or a little bit of a blend. Other colors can also work.
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Hmmm my art doesn’t work too well but you get the point.