Keitai confronted rebellion in KyÅ `` shÅ `` , which was then known as the Island of Tsukushi . In Keitai 's later years , 527 or 528 , the Iwai Rebellion broke out in Tsukushi province , KyÅ `` shÅ `` . Keitai assigned Mononobe no Arakahi as Shogun and sent him to KyÅ `` shÅ `` to put down the rebellion .