Osman Mahamuud's Kingdom was under attack in the mid-19th century due to a power struggle between himself and his ambitious cousin, Yusuf Ali Kenadid. After almost five years of battle, the young upstart was terribly defeated and finally forced into exile in Yemen. A decade later, in the 1870s, Kenadid returned from the Arabian Peninsula with a band of Hadhrami musketeers and a group of devoted lieutenants. With their assistance along with aid and weaponry from Boqor Osman, he managed to overpower the local Hawiye clans and establish the separate Sultanate of Hobyo (Obbia) in 1878.