Ner'zhul has met with opposition to his plans from the leaders of both the Thunderlord and Bonechewer clans. They desire to journey to Azeroth and have their clans triumph where Doomhammer had failed. This is a vision not shared by your Warchief...
You are to lead the forces of Shadowmoon against the strongholds of both Bonechewer and Thunderlord. Once these weak fools and their clans are removed, no others will dare to interfere with the dark schemes of Ner'zhul.
This article or section includes speculation, observations or opinions possibly supported by lore or by Blizzard officials. It should not be taken as representing official lore.