Naval warfare
What ship sunk a North Korean ship in the Battle of Haeju?
Korean War
Because neither Korea had a large navy, the Korean War featured few naval battles; mostly the combatant navies served as naval artillery for their in-country armies. A skirmish between North Korea and the UN Command occurred on 2 July 1950; the US Navy cruiser USS "Juneau", the Royal Navy cruiser HMS "Jamaica", and the frigate HMS "Black Swan" fought four North Korean torpedo boats and two mortar gunboats, and sank them. During most of the war, the UN navies patrolled the west and east coasts of North Korea and sank supply and ammunition ships to deny the sea to North Korea. Aside from very occasional gunfire from North Korean shore batteries, the main threat to US and UN navy ships was from magnetic mines the North Koreans employed for defensive purposes. During the war, five U.S. Navy ships were lost (two minesweepers, two minesweeper escorts, and one ocean tug) all of them to mines, while 87 other warships suffered from slight to moderate damage from North Korean coastal artillery. The USS "Juneau" sank ammunition ships that had been present in her previous battle. The last sea battle of the Korean War occurred at Inchon, days before the Battle of Incheon; the ROK ship "PC 703" sank a North Korean mine layer in the Battle of Haeju Island, near Inchon. Three other supply ships were sunk by "PC-703" two days later in the Yellow Sea.