I decided to make the walrus men again and make them and plump helmet men playable in adventure mode and fortress mode.
You should also give your walrus people non-sapient walrus mounts and pet wingèd giant walrus...griffon...things. The onslaught of pinnipeds would overwhelm the pathetic land-based creatures. It is terrifying.
A vile force of darkness turned up for the first time in a couple of years. Honestly, I don't know why their demonic master doesn't just come itself, considering how every single one of their sieges goes.
This siege was particularly embarrassing for the goblins, because one of my legendary axedwarves (combat skills honed through long practice, several sieges by goblins and one by even more pathetic humans, and fighting the horrific creatures of the hollow caverns of the earth. You know, your standard axedwarf) arrived on the scene long before everybody else, who got distracted on the way chasing some coyotes. He was immediately mobbed by the the entire goblin force. The combat log is a long, long list of goblins failing to hit him and then having their limbs hacked off or their heads collapsed by a well-placed kick or punch. By the time the others arrived, the goblins were dead and the trolls in disarray. He became the first dwarf in this fort to earn the profession-name "Siegebreaker." It's less prestigious than "Beastslayer" (kill one forgotten beast or megabeast, you're "Whoever's Bane"; kill two or more, you're "Beastslayer"), but still no accolade to sneeze at.
I've begun construction on the Tower, a massive, well, tower, whose base (once finished) shall be deep in the earth (currently a few Z-levels) and which shall stretch to the top of the sky, where it will link the dwarven city of the deep to the new dwarven *sky* city, held aloft by masterful workdwarfship (thanks to the whole "as long as it's supported orthagonally by any other natural or constructed wall or floor, it'll stand" rule).