The population growth of Cumar Maxamuud vis-a-vis Hawiye in Mudug and Galgaduud has meant the end of any worry of military conflict. The Hawiye are simply no longer large enough to pose the threat they posed 30 years ago. The combined power of Cumar Maxamud and Reer Bicidyahan is probably equal to that of all Hawiye in Galmudug and Hiirshabelle.
Something similar is taking place between Harti and Isaaq. The Harti have significantly higher population growth than Isaaq, so it is just a matter of 10 to 15 years until the balance of power is such that Harti never have to think about conflict with Isaaq.
Ogaden used to fight Isaaq, until they got so big Isaaq stopped trying to antagonize them. Harti has become at least 2x the size of Isaaq.