The Battle of Mohi (11 April 1241) was a pivotal conflict between the Mongol Empire and the Kingdom of Hungary during the Mongol invasion of Europe. The battle took place at Muhi (then Mohi), a town located in present-day Hungary, southwest of the Sajó River. The Mongol Empire, led by Batu Khan, sought to expand its territories into Europe, while the Kingdom of Hungary, led by King Béla IV, aimed to protect its borders.