I had just loked around and noticed that everyone in my fortress was inside, so I decided to close up the bridge-door, and seal myself in, despite the human traders that had just shown up.
I watched as a dwarf hit the lever, and the fortress sealed itself up tightly.
Literally five seconds later, I get a message about a siege.
Being me, I've been OCDing on cleaning up the fortress from rocks the last few years......and haven't put together any military, weapons, or armor.
But now I'm sealed up tightly. And I don't need to worry.
Unless they can drop down onto my open drawbridges....should probably seal those up too.
Then in a year or two once my military is up to par, I can open up a passageway and slaughter the goblins.
I do look forward to free stuff from the human caravan, and anything off the goblins the human guards kill.
....or the 16 odd goblins can stare across the river at the trading depot that is currently full of goods, while I scramble to make copper arms/armor to compete with the iron ones the gobs brought.
I've instituted a draft--anyone capable of picking anything up is sent to the fields to grow brewable items, or to brew beer (had been running 1.5, now I've got 5 build). Otherwise we'll run out of drink in a month. I have 200 prepared meals, that should last me for a season, and lots of eggs and lots of creatures I can slaughter for food if I need to.
Meanwhile, I have 2 people slaving away downstairs--one making nothing but charcoal, the other making his finest weapons and armor. I've got a population of 102, but my drink supply hovers around 45.
I think there's a group of crundles that have been near my main shaft have been multiplying. there had been 2-5, now there's like 10. Target practice for marksdwarves!