Oda Nobunaga was a daimyo who reunited Japan. He was a fierce warrior who was the first person to have soldiers who used guns in Japan. Oda Nobunaga controlled half of Japan before jis death in 1582.
Toyokmi Tideyoshi Was Oda Nobunaga best general so when he died Toyokmi took over. Toyokmi was born a peasant and worked his way up to be general. Through force and politicial alliances, he controlled all of Japan but then later died in 1598
Tokugawa Leyasu won the battle to conrol all of Japan when Touokami died. He was named the first shogun amd founded a dynasty which took power until 1868.
These three important people really impacted Japan because they ruled for long time and overtime they made Japan the way it is today