Japan is an archipelago of over 3,000 islands located in East Asia between the Sea of Okhotsk and Taiwan. The four main islands are Hokkaido, Honshu, Shikoku, and Kyushu. Most of Japan's 127 million people live in urban areas on the plains of Kanto and Nobi, including over half in cities like Tokyo. Japan has a constitutional monarchy with the Emperor serving as a symbolic figurehead. The document also briefly mentions several notable places, events, and disasters in Japan's history such as Mt. Fuji, the 1923 Great Kanto Earthquake, and the atomic bombings of Hiroshima and Nagasaki during World War II.