Japanese invasions of Korea: Thirteen Korean ships commanded by Admiral Yi Sun-sin defeated a far larger Japanese invading fleet at the Battle of Myeongnyang in the Myeongnyang Strait.

The Imjin War was a series of two Japanese invasions of Korea: an initial invasion in 1592 also individually called the "Imjin War", a brief truce in 1596, and a second invasion in 1597 called the Chŏngyu War. The conflict ended in 1598 with the withdrawal of Japanese forces from the Korean Peninsula after a military stalemate in Korea's southern provinces.

Yi Sun-sin was a Korean admiral and military general known for his victories against the Japanese navy during the Imjin War in the Joseon period. Yi's courtesy name was Yŏhae (여해), and he was posthumously honored with the title Lord of Loyal Valor.

In the Battle of Myeongnyang, on October 26, 1597, the Korean Joseon Kingdom's navy, led by Admiral Yi Sun-sin, fought the Japanese navy in the Myeongnyang Strait, near Jindo Island, off the southwest corner of the Korean Peninsula.

Myeongnyang Strait (Korean: 명량해협) is a strait separating the mainland of South Korea with the island Jindo. It separates Jindo County and Haenam County, and is located in South Jeolla Province. It is also called Uldolmok.