'We will need the might of the Dwarves of Othrikar if we are to face the threat of Angmar. The Dwarves there are good Longbeards, but have long been put to task by the Dourhands. When the Dourhands showed their true loyalties, the Longbeards drove them out of Othrikar.
'Yet, they are still hard-pressed by the Dourhands, and only recently has one of Durin's Folk from Erebor, Dori, come to aid them. It will not be easy to convince them to lend their strength to the Council, but you must try.
'Travel to Othrikar and speak with Dori. If you cannot find Dori for some reason, speak to a dwarf named Hannar. It is he who leads the Longbeards of Othrikar.'
To deal with the threat from Angmar, Halbarad has decided that he must call a council of the Free Peoples of the North Downs -- the Council of Esteldín.
Talk to Dori or Hannar