You forget its not Somalis and Hararis claiming Oromo clans/city but the other way around. How is it even in dispute? Harar is Harari and Dire Dawa, both groups have their names as the city. The land is worth more to me than a group of people would kill their way into another people homeland.
If the Walls of Harar don't tell you that Oromos are unwanted foreigners than i don't know what will
I would accept Oromos if they didn't threaten the two cities but reality wont allow it
Dire dawa has a meaning in afaan oromo too-the place of remedy. so do not pretend as if it's only a somali thing or term.