The Sunch'on wajō was the westernmost Japanese fortress and contained 14,000 troops commanded by Konishi Yukinaga, who was the leader of Japan's vanguard contingent during the first invasion, in 1592 [REF].
On 15 December, about 20,000 Japanese troops from the wajō of Sach'on, Goseong and Namhae boarded 500 ships and began to mass east of the Noryang Strait in an attempt to break the allied blockade of Sunch'on.