During the Jinshin war, the Imperial Court based in Omi no miya palace in Otsu sent tens of thousands of soldiers to Mino Province where the headquarters of the Prince Oama (the Emperor Tenmu) was located.
壬申の乱の際に、美濃国に本営を設けた大海人皇子（天武天皇）に対し、大津の近江宮にあった朝廷は、数万の軍勢を派遣した。