The Emperor ruled Japan.
The Taishō Emperor was the emperer of Japan from 1912-1926 when he died. His name was Yoshihito. He was the 123rd emperer of Japan. He was succeeded by Emperor Hirohito (aka Emperor Showa), who was the emperor during WW2, who ruled from 1926 to 1989.
Emperor Sujin was the Japanese emperor, who ruled from 97 BC to 30BC, and was the 10th emperor of japan.
Emperor Seimu, ruled from 130-190.
Japan
The ruler of Japan during World War II was Emperor Hirohito. He was one of the longest ruling monarchs when he died in 1989.
Japan had a "Monarch" government during WW2. Their monarch was headed by an Emperor; Emperor Hirohito.
Japan was an empire at the time, ruled by their emperor Hirihito.
Taisho.
The general who ruled Japan in the emperor's name is known as the shogun. The shogunate system began in the late 12th century, with Minamoto no Yoritomo being the first shogun after the Genpei War. Although the emperor was the nominal ruler, the shogun held actual power over the military and governance, effectively controlling the country for centuries until the Meiji Restoration in the 19th century.
Emperor Showa, better known as Emperor Hirohito ruled Japan from December 25th, 1926 until his death on January 7th, 1989. He was the 124th Emperor of Japan.
Japan was under the Imperial Kingdom of Japan. It was ruled by military leaders, government leaders and there was an Emperor. The Emperor was Hirohito during World War 2. They were not under British rule. The Brits and the Americans were Japans enemies then. Now they are not enemies.