Warlord Dogar is a Mongol duel opponent who holds Ogawa Dojo. You have to beat him one on one to free the dojo and earn its rewards.
Switch to Water Stance before the duel starts and chain flurries to break his guard.
Altan
Altan is the Mongol warlord who terrorises Otsuna and the main enemy of Yuna's Tales. He steals food and medicine and works with Japanese slavers. He stays hidden until Jin and Yuna strike at his allies.
General Dogshin
General Dogshin is a Mongol duel opponent at General Dogshin's Camp. Beating him frees the camp and unlocks a piece of armour needed for the tale Fit for the Khan.