Answer:
The war between rival clans had a major effect on Japan by leading to the unification of the country under a single leader. This unification ended the Warring States Period and marked the beginning of the Edo Period. This period was characterized by economic growth, political stability, and cultural development. It also marked a shift in political power from the military leaders to the Emperor. The period was also characterized by the enforcement of strict social class divisions which lasted until the Meiji Restoration in 1868.