South Korea.
japan
East of North Korea is the Sea of Japan (called the East Sea by Koreans) and on the other side of the Sea of Japan is JAPAN.
Korea (both North and South) is between China and Japan.
The Sea of Japan is between Japan and North Korea.
The islands of Japan are situated between the Sea of Japan and the Pacific Ocean. The Sea of Japan separates Japan from South Korea, North Korea, and Russia.
korean
The Asian Countries that occupy the Choson Peninsula (Hanguk Peninsula in South Korea, Korean Peninsula in English) are North Korea (the Democratic People's Republic of Korea) and South Korea (the Republic of Korea). This peninsula extends from Asia between the Sea of Japan & the Yellow Sea.
North and South Korea.
The neighboring countries of North Korea are South Korea, China, Russia, Japan, and Mongolia.
North and South Korea are due west of Japan, across the Sea of Japan. North Korea is at the same latitude as the northern half of Honshu, the large central island of Japan. South Korea is at the same latitude as southern Honshu (and Tokyo), but farther north than either or Shikoku or Kyushu. The southwestern section of the Sea of Japan that borders South Korea is also called the Tsushima Basin, and the straits separating the countries at their closest point are called the Korea Strait.
No, North Korea, South Korea, and Japan are three separate nations.