I want to know the answer to the following question:
Who dominated any battles that may have taken place at sea?
All the background I'm provided with is that "A skirmish between North Korea and the UN Command occurred on 2 July 1950; the U.S. 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.". Is that enough to answer the question?