Though civil strife continued to rage as it had for the previous century, the battles growing larger and more tactically complex, it was at this time that the many "warring states" began to be united. There were 3 powerful daimyō who unified the Japanese archipelago. In the second half of the 16th century, Japan was first fully unified by daimyō Oda Nobunaga and then by Toyotomi Hideyoshi. The third daimyō who unified Japan was Tokugawa Ieyasu after the Battle of Sekigahara in 1600. This resulted in 268 years of uninterrupted rule by the Tokugawa clan.