At the same time, Shingen TAKEDA of Kai Province conquered Shinano and expanded his territory; in his latter years, Shingen changed his diplomatic policies and started invading Suruga.
同時期に甲斐国の武田信玄は信濃を平定して領国を拡大し、信玄後期には外交方針が転換し駿河侵攻が行われていた。