Answer
Ögedei Khan, the third son of Genghis Khan, held Subutai in the highest esteem as his most skilled general. Subutai's exceptional military strategies and tactics played a pivotal role in the Mongol Empire's vast conquests, extending its reach from Eastern Europe to the Far East. His innovative use of cavalry and his ability to adapt to diverse terrains and enemy tactics made him an invaluable asset to Ögedei Khan's campaigns.