I figured out you can use open-legends force during world-gen to check on history in progress, awesome.
Caught a nice map with a bunch of towers in the middle of a war with some goblins, found a reclaim fort with chalk and magnetite and whatnot which is currently at war and has four or five, maybe six towers as neighbors, I forget but it was a lot.
I think it's the sacked fort near the mass of roads and vault and cave and dark fortresses by the middle-ish area.
So, I set myself down and noticed that the fort has goblin minitowers scattered around just like a dark pit/fortress.
Neat, I figure I'll go ahead and set up tunnels out to them and wall off the doors, use them for crossbow squads, maybe catapults too later on.
Instead I ended up spending a year working on stuff like up-ramping and engraving a neat little bedroom design.
Why did I spend a year doing that?
Weeeeelllll...
With 20 dorfs in the fort, early winter of the first year I had 40 undead goblins, humans, and dorfs set up shop and start punting the wildlife around the map.
I began training with what little skills I had available, four marksdorfs and three hammerdorfs.
Later I got the idea to carve fortifications near the raised archery targets so they could shoot at the undead.
This didn't do much, sadly, but for some reason the zombies got bored and left the next winter while I was trying to set up a trapped chokepoint to funnel them in a few at a time to whittle them down.
I got a migrant wave (apparently neither they nor the caravans were willing to arrive mid-siege) and was setting up for more of them, plus a caravan with any lu-
Oh come on, seriou-
...you're kidding, what's next, Necromancer infiltration?
"Intruders! Drive them out!"
...
So the good news is, the first siege (which I thought was the goblins, but was actually undead for some reason) left when the zombies came back for the annual punting of the wildlife, and they also chased the necromancers off the map, very amusing.
The bad news is, they looked like they were going to just hang around all year again. I got a good mood though.
So I decided to copy the save and take matters into my own hands, along with a gold war hammer.
A lone dorf gets a weird look in her eyes, straightens her clothes and gear, then silently marches down into the tunnels under the fort before ascending one of the minitowers, her beard flowing majestically as she leaps through the fortifications to a nearby hill.
Then she strides down to a flat section of land, raises her hammer to the sky, and bellows a challenge to all those damned zombies!
Sadly there wasn't much means to tell the folks inside about this, and I had to use launch to get back up onto a minitower, but I did get to appreciate my architectural efforts in person.
Thus was the siege broken (mostly, apparently there were two more hiding somewhere that slipped inside and killed a couple dorfs while I was trying to find the rest, so I bashed their heads in as well) and Asmel decided to take the suggestion of her militia captain to heart and go take the battle to the enemy.