What do you mean? The orcs raided and killed every living dwarf in Moria, which was a major dwarven city, but there were other big dvarwen cities in the Third Age that was untouched by the war of the ring, such as the Iron Hills and the Blue Mountains.
Hah...hah...I actually did a quick read through in their history from the first age to LOTRS series. Pretty cool stuff... I do remember they got wiped out by the orcs and the Balrog, but wanted to know what happened to the rest.
Marcus Aurelius: Tell me again, Maximus, why are we here?
Maximus: For the glory of the Empire, sire.
Baked, not fried... the healthy choice.