Thorin in the Blue Mountains

[Inziladun]

Going back to something Pitchwife said, it seems rather odd to me that the Dwarves of Khazad-dûm allowed themselves to be ousted from their most famous, greatest mansion in the first place.
Granted, the Balrog was a creature the likes of which they'd not met before, but still: they didn't know precisely what the Necromancer was either, but that didn't stop Thorin from entertaining ideas about trying to take him out.

And when I think about it, was it really beyond the powers of a large force of Dwarves, say the size of the army at the Battle of Nanduhirion, to have destroyed one Balrog? After all, one Elf accomplished just that twice in Gondolin.