With respect to wars, disputes over territories are prominent as seen in sending troops by the Nanbu clan to Senboku and Kazuno since the first half of the fifteenth century (this war over Kazuno continued until around Eiroku Era) and invasion into the Kahoku region by the Date clan.
戦乱といえば、15世紀前半から南部氏が仙北・鹿角に出兵（この鹿角争奪戦は永禄頃まで続く）、伊達氏の河北地方への侵食など領地争いが目立つ。