Ayuthaya troops was smaller than Burma and at that time King Naresuan 's elephant named Phraya Chaiyanuparp and King Phra. Ekatosarot 's elephant named Chao Phraya Praptrichak ran into the Burma troops so they had no soldiers to help them fight. So King Naresuan made the stratagem that he and Phra Maha Uparat would fight together on elephant using long pike (It was. One of the honor fighting at that time).