- the war between the coalition of clans in the province of Iga ninja on one side and the unifier of Japan, Oda Nobunaga and his son Kitabatake Nobuo other. War was fought from 1578 to 1581 years. The outcome of the war was the loss of independence for the province of Iga and moving it under the control of the central government. Ninja no longer an independent player on the political scene in Japan. Another important consequence of the war was the scattering of ninja clans throughout Japan, especially geographically focused on the primordial earth (Iga province).