The besieging army led by IKEGAMI was as big as about 4700 strong with 21 platoons and one battery in the beginning, but reduced to 16 platoons and two batteries during the drawn-out siege, and further reduced in March when they sent reinforcements to the hard-fought battlefields at the north front including Takase, Yamaga, Tabaru, and Ueki as the battles became more violent.
池上率いる長囲軍は当初、21個小隊・1個砲隊、計4,700名近くもいたが、長囲策が採られると16個小隊・2個砲隊に減少し、3月になって高瀬・山鹿・田原・植木等の北部戦線が激戦化するにつれ、増援部隊を激戦地に派遣してさらに減少した。