Japan is a constitutional monarchy, with the Emperor as a symbolic head of state and the Prime Minister as the head of government.
Tennis is also popular in Japan, with several Japanese players competing at the highest level of the sport, including Naomi Osaka and Kei Nishikori.
Japan's victory over Russia in the Russo-Japanese War of 1904-1905 was the first time an Asian power had defeated a European power in a modern war.
