The East China Sea and the Sea of Japan are around Korea.
The Yellow Sea
Sea of Korea
The Times called the sea between Korea and Japan the 'Sea of Japan' instead of the 'East Sea'.
The East Sea.
The Sea of Japan
Sea of Japan, Korea Bay, and maybe the Yellow Sea
Either the Korea Strait or the Sea of Japan.
China North Korea South Korea
The Korea Strait separates Japan and Korea. It connects the East China Sea to the Sea of Japan.
korean
The Sea of Japan borders North Korea to the east.