Question: Why did the Korean War feature few naval battles?
About the article "Korean War", section "Naval warfare".

Candidate passages:
Compared to World War II, there are relatively few feature films depicting the Korean War. 
 "For a complete list of naval engagements, see Naval battles of the Cretan War"  
List of naval battles of the War of 1812. 
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.
During the Korean War in 1952, Bulkeley commanded Destroyer Division 132.
After the war, he was Chief of Staff for Cruiser Division Five Because the North Koreans did not have a large navy and the Chinese were not committing their own, few naval battles were fought in the war.
Destroyer Division 132 focused on providing naval gunfire support for troops on shore, but also, on several occasions, the destroyers engaged enemy shore batteries.
Throughout the conflict, the North Koreans failed to inflict serious damage on any American warship deployed.
In the early 1960s, Bulkeley commanded Clarksville Base, Tennessee, then a tri-service command under the aegis of the Defense Atomic Support Agency.
Having lost none of his wartime daring, Bulkeley was known to test the alertness of the Marines guarding the base by donning a ninja suit, blackening his face and endeavoring to penetrate the classified area after dark without detection.
This was a dangerous endeavor, as the Marines carried loaded weapons.
Ever popular with his men, who both respected and admired him, Bulkeley could be seen driving around the base in his fire-engine red Triumph TR3 sports car with a large silver PT boat as a hood ornament.
Promoted to Rear Admiral by President John F. Kennedy, who commanded PT-109 during World War II, Bulkeley was dispatched to command the Guantanamo Bay Naval Base in Cuba, where he met Cuba's threat to sever water supplies in response to the Bay of Pigs invasion and other assaults by ordering the installation of desalinization equipment to make the base self-sufficient.