I thought these two cities were fighting each other

How are they building roads, or is it all for fun
Cangeero
These two cities have never fought. I don't know where you got that from. Maybe you meant Buhodle and Burco.
Cawo makes a good point. Somalis fight, but never let anything in the way of business. This is what has sustained the only country that has had no functioning government for decades. Somalis would have perished as a race a long time ago were it not for business.
For example, the recurring skirmishes in the divided Gaalkacyo has never stopped the north south trade. And it never will. There is war between Buhodle and Burco but that has never interrupted business.Business between the rival maamuls or even the shabab held areas goes on unabated.
Trade is supreme among the Somalis, more than Islam, more than the clan.