premise: Timur defeated an enemy.
hypothesis: Timur . From that base he led military campaigns across Western , South and Central Asia , the Caucasus and southern Russia , and emerged as the most powerful ruler in the Muslim world after defeating the Mamluks of Egypt and Syria , the emerging Ottoman Empire , and the declining Delhi Sultanate . Timur also decisively defeated the Christian Knights Hospitaller at the Siege of Smyrna , styling himself a ghazi .