The country which is geographically closest to Japan is letter B or South Korea. It is a sovereign state in East Asia. It is ranked 107th in terms of area with total area of 100,210 square kilometers and ranked 27th in terms of population with a total population of more than 51 million people. Japan’s coordinates are 36 degrees N, 138 degrees E while South Korea’s coordinates are 35 degrees N, 127 degrees E. A person who wishes to travel to Japan from Korea in an airplane will have to travel 587 miles or more than 1 hour. South Korea can be divided into different administrative divisions – eight provinces, six metropolitan cities, one special self-governing province, special city and metropolitan autonomous city.