Sengoku period

The Sengoku period (c. 1467–1615), or "Warring States" period, was a tumultuous era in Japanese history marked by near-constant civil war, social upheaval, and political intrigue. Triggered by the decline of the Ashikaga Shogunate and the Ōnin War, power shifted to local warlords known as daimyo, culminating in the country's unification by three great leaders: Oda Nobunaga, Toyotomi Hideyoshi, and Tokugawa Ieyasu.