Argh, the Ogres attacked the Fortress again. This time, however, I had a surprise ready for them; Giant Eagles. The Elves in thsi world aren't completley useless since they can supply me with these magnificent beasts. Upon entering the fort, the first Ogre was attacked by the Eagles and ran away in fear. Unfortunately, the second Ogre was able to enter without drawing their attention. So I unleashed the military against them, and they were a spectacular failure. The Ogre punched all of the blood out of one of the poor bastards before I decided to resort to recruiting everyone in the fort to pile themselves on top of the Ogre, which worked.
One of the flaws with my forts is that it takes forever to get the metal industry up and running. But once I do, I shall have my revenge.
Also,
here is a screenshot of the main floor of townbrush, just to give an idea about how far it's progressed.