Given the following passage "An Ancient Chinese document from the 9th century referred to the northern Somali coast which was then called "Berbera" by Arab geographers in reference to the region's "Berber" (Cushitic) inhabitants as Po-pa-li. The first clear written reference of the sobriquet Somali, however, dates back to the 15th century. During the wars between the Sultanate of Ifat based at Zeila and the Solomonic Dynasty, the Abyssinian Emperor had one of his court officials compose a hymn celebrating a military victory over the Sultan of Ifat's eponymous troops.", answer the following question. Note that the answer is present within the text. Question: Who helped the Abyssinian Emperor win military victories?
A:
troops