So the elves did show up with a caravan after all. It just took a few weeks. Then nothing eventful happened until autumn besides the brave militia of The Radiant Hall of Business fending off some white storks and a flock of Keas. Soon after the start of autumn, the goblin siege we'd been dreading appeared in the east, but my dwarves were well-trained and knew their orders well. The moment they appeared, the alarms went throughout the fortress for the civilians to take shelter inside while the majority of the militia went out to battle, with the squad of marksdwarves heading to their posts upon the eastern wall and towers as the main gates shut and the axe and spear dwarves headed to their positions in the courtyard. Evidently this was just a test of our preparedness, as the goblins numbered at only a baker's dozen or so.
The first bolt fired from our crossbows skewered a goblin through the head, dropping him instantly, and several others were soon to follow as the crossbow bolts dropped their ranks. Then, to our disbelief, a human bard decided that it was time to leave and made a break for it as three goblins crept along the south wall, out of the firing range of the deadly marksdwarves. Despite a quick re-organizing of the defenses, it proved unnecessary, as the bard was able to evade combat and escape safely. With the majority of the enemy force successfully incapacitated in front of the east wall and towers, the three brave goblins that had been heading south made it to the heavily trapped and left-open west entrance, only for one of them to be pinned to the wall as he walked right in front of a redeployed marksdwarf. The other two pressed onward, only to be immediately slain by the sharp glass traps that stood in their path.
Seeing the end in sight with the promise of a complete and total route of the goblin skirmishers, the order was given, and the twenty axe and spear dwarves waiting for their chance rushed out through the trap corridor, slaying the pinned goblin with two quick spear thrusts before advancing onto the others that were already in retreat to the east. The last two surviving goblins died with crossbow bolts and spears in their back, and our first Elite Marksdwarf was forged this day in our first battle.
Only a couple days later, the caravan arrived to witness us cleaning up the bodies and what they'd left behind, and their traders came to the tavern to hear of the battle. Glory to the barony of Ateshiton Kitig, The Radiant Hall of Business!