The Battle of Talas. 751 AD.
Battle between the Chinese Empire and Arab Caliphate. A time in history where China had expanded its control of central Asia more than any other time. Also the time when the early conquests of the great Arab Caliphate was growing. The defeat of the Chinese army there ultimately led to Islamic dominion of central Asia and the middle east which has remained the strong holds of the Islamic faith ever since. A loss to the Chinese at this battle may have likely left the Islamic faith no central core of lands to proposer in and its impact on our world very different today. Who knows what long term Chinese dominion of these lands may have meant. Could be the Mongol Empire would have had no place to expand into initially and have never formed.
The Battle of Baghdad. 1258 AD
While not a well matched set of forces, the fall of Baghdad and the Mongol sacking of the city and the subsequent destruction of the irrigation canals and other infrastructure shattered this land and set a land of open trade, free knowledge and understanding into its own dark age. Civilization in the middle east suffered a set back that to this day it has failed to recover from economically and culturally.
Battle of Samarkand (not sure if that is its proper name). 1220 AD.
Ghengis Khan and the Mongols capture and sack Samarkand. This was one of the most difficult challenges faced by the young Mongol Empire and conventional wisdom suggested it could not be won. It was the last serious road block preventing the Mongols from going into arguably the most influential empire in history.
Battle of Bun’ei (1274) and Battle of KÅan (1281)
Two massive efforts by the Mongol Empire to try and conquer Japan. Both efforts met disaster when significant ship loses happened due to unusually strong typhons allowing the Japanese to resist and defeat otherwise much larger armies.
Just to toss out a few non Euro centric battles that have greatly influenced the shape of world history.
Ryan S. Johnson
Guild of Blades Publishing Group
http://www.guildofblades.com
http://www.1483online.com
http://www.thermopylae-online.com