Japan
japan
Japan.
None. Ocean. But you are probably wanting North and South Korea.
Japan lies to the northeast of China, and Taiwan is directly east of China.
Japan
China is the closest country to Japan that starts with a c. South Korea and Russia are far closer to the main mass of Japan than mainland China, though there are some disputed areas between the two countries.
Japan has a better technology.
Japan's, China's, and others.
China
Yes
No, never.