This struggle between the Uesugi clan and the Hojo clan divided gozoku the whole of Kanto into two groups causing battles such as the Battle of Konodai between Ujiyasu HOJO and Yoshitaka SATOMI (UESUGI SIDE).
この上杉氏・北条氏の争いは全関東の諸豪族を二分して、北条氏康と里見義堯（上杉陣営）による国府台合戦などの戦いを惹き起こした。