Oh crap. Well, I'll get at it.
Will edit this post shortly.
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We had many of pets just standing around in our halls, so I asked the miners to carve out some pits for us to put them in, and wa-la.
Currently the puppies, muskoxes, and cows are in the pits and we have one empty pit. Hopefully they will reproduce so we can have good war dogs, and maybe some muskox meat.
I have tasked the masons with making the top layer of the wall now, which has a floor marksmen can stand on and shoot through fortifications I have had built. We have also completely finished the gates now, they are activated/deactivated from the front of the fort.
Also, we have set up rows of cage traps in front of the gates as well, so even if enemies try to come in while we have the bridge down, they will likely be caught in the cage traps, at which point we can do what we wish with those bloody intruders.