In 1582, when the Bichu Takamatsu-jo Castle defended by Muneharu SHIMIZU was besieged, Takakage lead the main force of the Mori clan with 30,000 soldiers and set off to rescue him with Terumoto and Motoharu (the Battle of Bichu Takamatsu-jo Castle).
天正10年（1582年）には清水宗治が籠る備中高松城が包囲され、隆景は輝元・元春と共に毛利氏の主力3万を率いて救援に赴いた（備中高松城の戦い）。