Especially in the offensive and defensive battle of Usui-jo Castle, Shirai Nyudo JOSAN, a strategist who took over command from Tanesada HARA with a troop of 2,000 soldiers severely defeated the Uesugi army with a military force of 15,000 soldiers at least seven times bigger than that of Tanesada.
特に臼井城の攻防では原胤貞2千の軍勢に上杉1万5千と7倍以上であったにもかかわらず、胤貞より指揮を受け継いだ軍師・白井入道浄三に大敗している。