When the Kyushu Conquest was carried out, Toshiie was put in charge of the defense of the Kinai region (the five provinces surrounding the ancient capitals of Nara and Kyoto) with the troops of 8,000 men (his son Toshinaga took part in the campaign to the Kyushu area.)
九州征伐では8000の兵で畿内を守備（息子の利長が九州まで従軍）。