Classical Age of the Ottoman Empire
Expansion continued during the first half of the reign of Suleiman I (r. 1520-1566), who conquered first Belgrade (1521) and Rhodes, before invading Hungary in 1526, defeating and killing King Louis II in the Battle of Mohács and briefly occupying Buda. Lacking a king, Hungary descended into civil war over the succession, and the Ottomans gave support to John Zápolya as a vassal prince. When their rivals the Habsburgs began to achieve the upper hand, Suleiman directly intervened by again conquering Buda and annexing it to the empire in 1541. Elsewhere, Suleiman led major campaigns against Safavid Iran, conquering Baghdad in 1534 and annexing Iraq. Ottoman rule was further extended with the incorporation of much of North Africa, the conquest of coastal Yemen in 1538, and the subsequent annexation of the interior.
History of Somaliland
At least by the reign of Emperor Amda Seyon I (r. 1314-1344) (and possibly as early as during the reign of Yekuno Amlak or Yagbe'u Seyon), these regions came under Ethiopian suzerainty. During the two centuries that it was under Ethiopian control, intermittent warfare broke out between Ifat (which the other sultantes were under, excepting Shewa, which had been incorporated into Ethiopia) and Ethiopia. In 1403 or 1415 (under Emperor Dawit I or Emperor Yeshaq I, respectively), a revolt of Ifat was put down during which the Walashma ruler, Sa'ad ad-Din II, was captured and executed in Zeila, which was sacked. After the war, the reigning king had his minstrels compose a song praising his victory, which contains the first written record of the word "Somali". Upon the return of Sa'ad ad-Din II's sons a few years later, the dynasty took the new title of "king of Adal," instead of the formerly dominant region, Ifat.