[1] It was the first battle of Admiral Yi's 2nd Campaign in the Imjin War, between Japan and Korea, when the turtle ship was first used.

Fearing that they were planning an attack on Yeosu, Yi Sunsin set sail with 26 warships on May 29 (Gregorian: July 8).

He met up with Won Gyun at Noryang and ordered him to mop up stragglers after the battle and then approached Sacheon.

But unlike their previous poor performance at the Battle of Okpo, the Japanese soldiers fought bravely and returned fire with their arquebuses in a timely manner.

It was in the heat of the battle when the course of Korea's history nearly changed; Admiral Yi was shot by a Japanese arquebusier.

The Battle of Sacheon caused the Japanese command at Busan some anxiety, as the supply ships that sailed from Japan might be in danger.