I was recently thinking about this rather old game that I played on this 1990s macintosh where you have to take over various territories on a map of a continent called 'Castles: siege and conquest'. Then I got the idea of taking the world map that you generate for Dwarf Fortress, dividing it into territorial lines, and then going on a sort of world domination conquest thing to take over everything.
Think of it as Civilization 4, only on Dwarf Fortress, the only difference being that when you go to war with a territory you see the battlefield as it would look in fortress mode or adventure mode. So most of the time you would see the map, the territorial lines, and whoever owns what territories that you know of.
From the map view, you train certain war dwarves, such as speardwarves or hammerdwarves. You could also scout surrounding territories, spy, sabotage, and offer territories and gifts to other civilizations. You could also select which territories to attack. You could probably even build small fortresses and outposts in territories for additional defense in case of an invasion.
As for how attacks go, it would be like invading a town or a fortress of sorts.
Perhaps to add a little scenery to the world map, as the seasons change the forests change color and the water in certain areas could freeze, grass could cover with snow, etc.
Perhaps I'm just tired of not being able to go on a goblin death crusade and destroy their civilization for attacking me so much. I don't really know. Besides all of this, theres a lot of things to add into the game before this would ever be added or even considered for that matter. I still think it would be a pretty fun mode. Comments? Suggestions?