Japan

Japan is a East asian nation ruled by a Prime Minister and also has a reigning monarch; the Emperor of Japan

Japan's Capital city is Tokyo.

Involvement in World War III
Prior to World War III, Japan was in a military conflict against North Korea along with South Korea and the United States of America, World War III began in Asia when the People's Republic of China invaded the western seaboard of Japan, this invasion also brought the attention of the United States as there are U.S. military airbases in Japan.