The civilian alert goes up. The soldiers and militia assemble outside the gate. Dogs bark, and stray cats hiss at the mass outside the gate. Ballistae are rolled into place, aimed at the mass of iron and steel below. The tamed bears and traded tigers, clad in chain mail and leather, await to charge into the fray. Dwarves atop giant moles and draltha line up, waiting for the signal. Then, the signal was given: a single drum beat, followed by the sound of clamouring feet, and released crossbow bolts. The army below begins it's own charge, the front lines falling to bolts. At the gates, a massive silhouette of a cave dragon, the duke of Richfloater atop it, screams to his men-"Today, we win independence, freedom from the old Mountainhome! Fight, fight to the last dwarf! This day, will be ours!"
Only to be scared off his mount by a wombat, the gate crushes the ballistae and crossbowdearves, the draltha stop to graze instead of fight, and the bears begin attacking any dwarf. Dozens of untrained soldiers simply run home.
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In short, it'd be great to fight for independence. Just, we need to work out some other things first. And implement some interesting features too.