Kuzulkadrinu Conquest of the Eastern Adhemars

Kuzul-Kadrin's conquest of the Adhemars' easternmost ranges, which had been orc-infested since time immemorial, unfolded from roughly 100 BV to 250 CV (thus concluding about a thousand years before the present day). It was the great dwarven state's most recent major territorial expansion, bringing it up to roughly its current borders. 
The latter part of the conquest overlapped with the anarchic post-Cataclysm period, in which the collapse of Qossite authority enabled large orcish populations pushed down out of the mountains by Kuzulkadrinu advances to menace the whole Taefemach. As long as Qoss controlled the Helvanderûn, orcs driven from their lairs in the Adhemars had few places to go, but the power vacuum after the Cataclysm changed that dramatically. This threat in turn played a major role in driving the formation of the Asgali Empire and the military orders that supported its rise (such the Oriflame Knights). By the time the Kuzulkadrinu were wrapping up their conquest of the easternmost ranges in the mid-200s CV, the young Asgali state was growing powerful enough to finally exterminate the last of the orcs who had been driven down to the lowlands.