A great victory!
Year 1277, Mongols vs. Bagan kingdom (Burma, present day Myanmar)
12,000 Mongol horsemen vs. 60,000 Burmese horsemen protected with 2000 war elephants.
After unifying China, the Mongol ruler Kublai Khan sent envoys to neighbouring kingdoms, obliging them to accept Mongol vassalage. The Pagan King Narathihapate (reigned 1254-87) shunned the first Mongol embassy and massacred the members of the second and sent back the heads to the great Khan. Confident of victory because of recent Burmese conquests of the territory up to Nanchao, Narathihapate advanced boldly into Yunnan in 1277, accompanied by scores of elephants and soldiers. He met the Mongol troops at Ngasaunggyan, where he was decisively defeated.
Marko Polo arrived in Burma as the official envoy of Kublai Khan in 1278, one year after the big battle between the kings of Burma (Bagan) and the Mongol army. He describes that great event which took place in the plain of Vochan. The Mongols were approaching that valley with 12,000 well-equipped horsemen to face a much bigger Burmese army of 60,000 horsemen and infantry-men and 2,000 elephants. When the Mongol soldiers saw the elephants they were so scared that they turned back and started to gallop to the rear. Then the Mongol captain had the salutary idea of making the horsemen dismount from the horses and tie them to trees in the nearby wood. His soldiers then started to shoot at the elephants hitting their vulnerable parts with numerous arrows, which was the Mongol's favourite weapon. The elephants started to run away towards the wood with enormous noise, while the wooden "castles" on their backs, holding twelve to sixteen well-armed warriors, were falling down while striking the branches of the trees. When the Mongols saw that the elephants ran away, they mounted their horses again and began to chase the enemy. Then a fierce battle occurred. "Then might you see swashing blows dealt and taken from sword and mace; then might you see knights and horses and men-at-arms go down; then might you see arms and hands and legs and heads hewn off: and beside the dead that fell, many a wounded man, that never rose again, for the sore press there was. The din and uproar were so great from this side and that, that God might have thundered and no man would have heard it!" After the battle the Mongol commander took some elephants to Kublai Khan and from that time he always included them in his armies...
Thereafter Burmese opposition disintegrated. The border fortresses near Bhamo fell in 1283, thus opening the Irrawaddy River valley to invasion. Narathihapate fled southward to Bassein, where he decided to submit to Mongol vassalage, but he was assassinated by his son in 1287.
Thereafter King Nara Thihapathe was given a nick name as "Run-away King from Chinese" (Myanmar people generally consider Mongols as Chinese.), as he let the first Myanmar dynasty fall in his hands. This king's appetite was also remarkable in Myanmar history. His cook got a royal order to cook no less than 100 dishes every meal he had! As he lived for food, he died eating. His son gave him a choice between the sword and poisoned food to die, the king chose poisoned food!