dirdhaba does not mean send hardship bro who are you fooling listen my bro study Egyptian invasion on et youl see the Issa ugaas had migrated to jaldessa from adigale bringing a few thousand somalis with him in 1875 This also made happen that a wall was built for an oromo side and somali a few decades prior this the city was just an oromo city.Diridhiba means to send hardship if translated directly, it's built on much older ruins over Hubat(dating back to the 9th century), just like the Amhara you oromos like to rename things, you have no history to the region before the 16th century so be a good little boy and sit at the kid's table.
Your bastard name of Dire Dawa will never stick, the area was never barren nor empty, all around the region you'll find camel remains, the only group that consumes camel meat are us and the Afar.
"the border went from Adigale to Errer within a centuries time before 1875 there was 0 somalis near the modern day Dire area."
I'm not going to waste my time friend, you need to stop reading Ethiopian revisionist books, grab a actual history book instead.