The Sengoku period was a time of intense social and political upheaval in Japan, lasting from the mid-15th century to the early 17th century. During this era, powerful regional lords, known as daimyōs, fought for control over territories, leading to constant battles and shifting alliances. This chaotic environment fostered the rise of notable figures like Oda Nobunaga and Toyotomi Hideyoshi, who aimed to unify Japan. As the conflicts continued, the samurai class became increasingly influential, shaping the culture and military strategies of the time. The period ended with the establishment of the Tokugawa shogunate, which brought about a long-lasting peace and stability in Japan.