Title: Imjin Waeran kwa Chŏlla chwasuyŏng, kŭrigo kŏbuksŏn
Subjects: Fortification, Congresses, History, Armored vessels, Navy-yards and naval stations, History, naval, Naval History
Places: Yŏsu-gun, Korea, Korea (South)
People: Sun-sin Yi (1545-1598)
Time periods: Japanese Invasions, 1592-1598