Battle of Chaldean

The first full battle between the armies of the Ottoman and Safavid Empires. 

The most immediately noticeable factor in the battle was the absolute superiority of the Ottoman army over the Safavids. 

The battle also showcased the effectiveness of new forms of weaponry. 

The outcome at Chaldiran had many consequences. Perhaps most significantly, it established the border between the two empires, which remains the border between Turkey and Iran today.